634265322131 has 8 divisors (see below), whose sum is σ = 724954884864. Its totient is φ = 543595817160.

The previous prime is 634265322113. The next prime is 634265322143. The reversal of 634265322131 is 131223562436.

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 634265322131 - 2³⁸ = 359387415187 is a prime.

It is a super-2 number, since 2×634265322131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (634265322101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4946615 + ... + 5073216.

It is an arithmetic number, because the mean of its divisors is an integer number (90619360608).

Almost surely, 2^634265322131 is an apocalyptic number.

634265322131 is a deficient number, since it is larger than the sum of its proper divisors (90689562733).

634265322131 is a wasteful number, since it uses less digits than its factorization.

634265322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028881.

The product of its digits is 155520, while the sum is 38.

Adding to 634265322131 its reverse (131223562436), we get a palindrome (765488884567).

The spelling of 634265322131 in words is "six hundred thirty-four billion, two hundred sixty-five million, three hundred twenty-two thousand, one hundred thirty-one".