165011234131 has 8 divisors (see below), whose sum is σ = 166241143584. Its totient is φ = 163781693760.

The previous prime is 165011234117. The next prime is 165011234149. The reversal of 165011234131 is 131432110561.

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 165011234131 - 2³⁵ = 130651495763 is a prime.

It is a super-2 number, since 2×165011234131² (a number of 23 digits) contains 22 as substring.

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 165011234131.

It is not an unprimeable number, because it can be changed into a prime (165011234231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840186 + ... + 1017808.

It is an arithmetic number, because the mean of its divisors is an integer number (20780142948).

Almost surely, 2^165011234131 is an apocalyptic number.

165011234131 is a deficient number, since it is larger than the sum of its proper divisors (1229909453).

165011234131 is a wasteful number, since it uses less digits than its factorization.

165011234131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184541.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 165011234131 its reverse (131432110561), we get a palindrome (296443344692).

The spelling of 165011234131 in words is "one hundred sixty-five billion, eleven million, two hundred thirty-four thousand, one hundred thirty-one".