313501134321 has 16 divisors (see below), whose sum is σ = 464571158400. Its totient is φ = 208944491184.

The previous prime is 313501134257. The next prime is 313501134361. The reversal of 313501134321 is 123431105313.

313501134321 is a `hidden beast` number, since 3 + 1 + 3 + 501 + 134 + 3 + 21 = 666.

It is not a de Polignac number, because 313501134321 - 2⁶ = 313501134257 is a prime.

It is a super-2 number, since 2×313501134321² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (313501134361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460646 + ... + 1661471.

It is an arithmetic number, because the mean of its divisors is an integer number (29035697400).

Almost surely, 2^313501134321 is an apocalyptic number.

It is an amenable number.

313501134321 is a deficient number, since it is larger than the sum of its proper divisors (151070024079).

313501134321 is a wasteful number, since it uses less digits than its factorization.

313501134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125845 (or 3125839 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 313501134321 its reverse (123431105313), we get a palindrome (436932239634).

The spelling of 313501134321 in words is "three hundred thirteen billion, five hundred one million, one hundred thirty-four thousand, three hundred twenty-one".