13321643412 has 96 divisors (see below), whose sum is σ = 39699201024. Its totient is φ = 3375763200.

The previous prime is 13321643407. The next prime is 13321643459. The reversal of 13321643412 is 21434612331.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13321643412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137938 + ... + 213705.

It is an arithmetic number, because the mean of its divisors is an integer number (413533344).

Almost surely, 2^13321643412 is an apocalyptic number.

13321643412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13321643412 is an abundant number, since it is smaller than the sum of its proper divisors (26377557612).

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

13321643412 is a wasteful number, since it uses less digits than its factorization.

13321643412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351709 (or 351707 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The spelling of 13321643412 in words is "thirteen billion, three hundred twenty-one million, six hundred forty-three thousand, four hundred twelve".