13012335552 has 56 divisors (see below), whose sum is σ = 34532653312. Its totient is φ = 4324320000.

The previous prime is 13012335499. The next prime is 13012335577. The reversal of 13012335552 is 25553321031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38824 + ... + 165927.

Almost surely, 2^13012335552 is an apocalyptic number.

13012335552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13012335552 is an abundant number, since it is smaller than the sum of its proper divisors (21520317760).

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

13012335552 is a wasteful number, since it uses less digits than its factorization.

13012335552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205097 (or 205087 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 13012335552 its reverse (25553321031), we get a palindrome (38565656583).

The spelling of 13012335552 in words is "thirteen billion, twelve million, three hundred thirty-five thousand, five hundred fifty-two".