13002121312 has 24 divisors (see below), whose sum is σ = 25906340376. Its totient is φ = 6422733312.

The previous prime is 13002121309. The next prime is 13002121331. The reversal of 13002121312 is 21312120031.

It is a super-2 number, since 2×13002121312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 2445033 + ... + 2450344.

It is an arithmetic number, because the mean of its divisors is an integer number (1079430849).

Almost surely, 2^13002121312 is an apocalyptic number.

It is an amenable number.

13002121312 is a deficient number, since it is larger than the sum of its proper divisors (12904219064).

13002121312 is an equidigital number, since it uses as much as digits as its factorization.

13002121312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895470 (or 4895462 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13002121312 its reverse (21312120031), we get a palindrome (34314241343).

The spelling of 13002121312 in words is "thirteen billion, two million, one hundred twenty-one thousand, three hundred twelve".