513311032312 has 16 divisors (see below), whose sum is σ = 1036493430840. Its totient is φ = 236912784096.

The previous prime is 513311032303. The next prime is 513311032363. The reversal of 513311032312 is 213230113315.

It is a super-2 number, since 2×513311032312² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 2467841398 + ... + 2467841605.

Almost surely, 2^513311032312 is an apocalyptic number.

513311032312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

513311032312 is an abundant number, since it is smaller than the sum of its proper divisors (523182398528).

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

513311032312 is a wasteful number, since it uses less digits than its factorization.

513311032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935683022 (or 4935683018 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 513311032312 its reverse (213230113315), we get a palindrome (726541145627).

The spelling of 513311032312 in words is "five hundred thirteen billion, three hundred eleven million, thirty-two thousand, three hundred twelve".