13003091820 has 72 divisors (see below), whose sum is σ = 39469641120. Its totient is φ = 3465123840.

The previous prime is 13003091819. The next prime is 13003091839. The reversal of 13003091820 is 2819030031.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248076 + ... + 295884.

It is an arithmetic number, because the mean of its divisors is an integer number (548189460).

Almost surely, 2^13003091820 is an apocalyptic number.

13003091820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13003091820 is an abundant number, since it is smaller than the sum of its proper divisors (26466549300).

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

13003091820 is a wasteful number, since it uses less digits than its factorization.

13003091820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49335 (or 49330 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 13003091820 in words is "thirteen billion, three million, ninety-one thousand, eight hundred twenty".