13132321312 has 48 divisors (see below), whose sum is σ = 28601947584. Its totient is φ = 5885152000.

The previous prime is 13132321297. The next prime is 13132321327. The reversal of 13132321312 is 21312323131.

It is an interprime number because it is at equal distance from previous prime (13132321297) and next prime (13132321327).

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 237739 + ... + 287722.

It is an arithmetic number, because the mean of its divisors is an integer number (595873908).

Almost surely, 2^13132321312 is an apocalyptic number.

It is an amenable number.

13132321312 is an abundant number, since it is smaller than the sum of its proper divisors (15469626272).

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

13132321312 is a wasteful number, since it uses less digits than its factorization.

13132321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525553 (or 525545 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 13132321312 its reverse (21312323131), we get a palindrome (34444644443).

The spelling of 13132321312 in words is "thirteen billion, one hundred thirty-two million, three hundred twenty-one thousand, three hundred twelve".