634162012131 has 64 divisors (see below), whose sum is σ = 918010920960. Its totient is φ = 388251600000.

The previous prime is 634162012093. The next prime is 634162012181. The reversal of 634162012131 is 131210261436.

634162012131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 634162012131 - 2⁹ = 634162011619 is a prime.

It is a super-2 number, since 2×634162012131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (634162012181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144420946 + ... + 144425336.

It is an arithmetic number, because the mean of its divisors is an integer number (14343920640).

Almost surely, 2^634162012131 is an apocalyptic number.

634162012131 is a deficient number, since it is larger than the sum of its proper divisors (283848908829).

634162012131 is a wasteful number, since it uses less digits than its factorization.

634162012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 634162012131 its reverse (131210261436), we get a palindrome (765372273567).

The spelling of 634162012131 in words is "six hundred thirty-four billion, one hundred sixty-two million, twelve thousand, one hundred thirty-one".