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120202013161 = 1196871004303
BaseRepresentation
bin110111111110010011…
…0010010100111101001
3102111021002021221110101
41233330212102213221
53432133203410121
6131115310145401
711453501153026
oct1577446224751
9374232257411
10120202013161
1146a829a264a
121b3674b2261
13b447cc7a99
145b640d054d
1531d7aab491
hex1bfc9929e9

120202013161 has 4 divisors (see below), whose sum is σ = 120203137152. Its totient is φ = 120200889172.

The previous prime is 120202013159. The next prime is 120202013249. The reversal of 120202013161 is 161310202021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120202013161 - 21 = 120202013159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120202017161) 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, 382465 + ... + 621838.

It is an arithmetic number, because the mean of its divisors is an integer number (30050784288).

Almost surely, 2120202013161 is an apocalyptic number.

It is an amenable number.

120202013161 is a deficient number, since it is larger than the sum of its proper divisors (1123991).

120202013161 is a wasteful number, since it uses less digits than its factorization.

120202013161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123990.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 120202013161 its reverse (161310202021), we get a palindrome (281512215182).

The spelling of 120202013161 in words is "one hundred twenty billion, two hundred two million, thirteen thousand, one hundred sixty-one".

Divisors: 1 119687 1004303 120202013161