Search a number
-
+
12100120122031 = 23849950734469
BaseRepresentation
bin1011000000010100011101…
…0111001001001010101111
31120211202112011202021111021
42300011013113021022233
53041222021222401111
641422415103435011
72356130154011014
oct260050727111257
946752464667437
1012100120122031
1139456a53a5407
1214351018b5a67
1369a062069946
142db91298b70b
1515eb42986d71
hexb01475c92af

12100120122031 has 4 divisors (see below), whose sum is σ = 12100171095000. Its totient is φ = 12100069149064.

The previous prime is 12100120122007. The next prime is 12100120122049. The reversal of 12100120122031 is 13022102100121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12100120122031 - 215 = 12100120089263 is a prime.

It is a super-2 number, since 2×121001201220312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100120121996 and 12100120122014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100120122731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25128736 + ... + 25605733.

It is an arithmetic number, because the mean of its divisors is an integer number (3025042773750).

Almost surely, 212100120122031 is an apocalyptic number.

12100120122031 is a deficient number, since it is larger than the sum of its proper divisors (50972969).

12100120122031 is an equidigital number, since it uses as much as digits as its factorization.

12100120122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50972968.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12100120122031 its reverse (13022102100121), we get a palindrome (25122222222152).

The spelling of 12100120122031 in words is "twelve trillion, one hundred billion, one hundred twenty million, one hundred twenty-two thousand, thirty-one".

Divisors: 1 238499 50734469 12100120122031