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12120032031101 = 173719268731369
BaseRepresentation
bin1011000001011110101000…
…1101000011000101111101
31120220122220212112001200222
42300113222031003011331
53042033311144443401
641435511005031125
72360433456313031
oct260275215030575
946818825461628
1012120032031101
113953093127405
121438b3a2554a5
1369bbb6410567
142dc8812a21c1
1516040ab01c1b
hexb05ea34317d

12120032031101 has 8 divisors (see below), whose sum is σ = 13179812257080. Its totient is φ = 11098789267968.

The previous prime is 12120032031089. The next prime is 12120032031119. The reversal of 12120032031101 is 10113023002121.

12120032031101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2146430104900 + 9973601926201 = 1465070^2 + 3158101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12120032031101 - 238 = 11845154124157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120032031101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120032031001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9634365056 + ... + 9634366313.

It is an arithmetic number, because the mean of its divisors is an integer number (1647476532135).

Almost surely, 212120032031101 is an apocalyptic number.

It is an amenable number.

12120032031101 is a deficient number, since it is larger than the sum of its proper divisors (1059780225979).

12120032031101 is a wasteful number, since it uses less digits than its factorization.

12120032031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19268731423.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12120032031101 its reverse (10113023002121), we get a palindrome (22233055033222).

The spelling of 12120032031101 in words is "twelve trillion, one hundred twenty billion, thirty-two million, thirty-one thousand, one hundred one".

Divisors: 1 17 37 629 19268731369 327568433273 712943060653 12120032031101