13531320382 has 32 divisors (see below), whose sum is σ = 20619016704. Its totient is φ = 6659452800.

The previous prime is 13531320377. The next prime is 13531320401. The reversal of 13531320382 is 28302313531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29225083 + ... + 29225545.

It is an arithmetic number, because the mean of its divisors is an integer number (644344272).

Almost surely, 2^13531320382 is an apocalyptic number.

13531320382 is a deficient number, since it is larger than the sum of its proper divisors (7087696322).

13531320382 is a wasteful number, since it uses less digits than its factorization.

13531320382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 13531320382 in words is "thirteen billion, five hundred thirty-one million, three hundred twenty thousand, three hundred eighty-two".