523201125161 has 96 divisors (see below), whose sum is σ = 684144679680. Its totient is φ = 396015459840.

The previous prime is 523201125143. The next prime is 523201125163. The reversal of 523201125161 is 161521102325.

It is not a de Polignac number, because 523201125161 - 2²² = 523196930857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (523201125163) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45109415 + ... + 45121011.

It is an arithmetic number, because the mean of its divisors is an integer number (7126507080).

Almost surely, 2^523201125161 is an apocalyptic number.

It is an amenable number.

523201125161 is a deficient number, since it is larger than the sum of its proper divisors (160943554519).

523201125161 is a wasteful number, since it uses less digits than its factorization.

523201125161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11727 (or 11716 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 523201125161 its reverse (161521102325), we get a palindrome (684722227486).

The spelling of 523201125161 in words is "five hundred twenty-three billion, two hundred one million, one hundred twenty-five thousand, one hundred sixty-one".