34131312520 has 16 divisors (see below), whose sum is σ = 76795453260. Its totient is φ = 13652524992.

The previous prime is 34131312491. The next prime is 34131312569. The reversal of 34131312520 is 2521313143.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31526843364 + 2604469156 = 177558^2 + 51034^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426641367 + ... + 426641446.

Almost surely, 2^34131312520 is an apocalyptic number.

It is an amenable number.

34131312520 is an abundant number, since it is smaller than the sum of its proper divisors (42664140740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34131312520 is a wasteful number, since it uses less digits than its factorization.

34131312520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853282824 (or 853282820 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 34131312520 its reverse (2521313143), we get a palindrome (36652625663).

The spelling of 34131312520 in words is "thirty-four billion, one hundred thirty-one million, three hundred twelve thousand, five hundred twenty".