13121020200 has 48 divisors (see below), whose sum is σ = 40675164480. Its totient is φ = 3498938560.

The previous prime is 13121020183. The next prime is 13121020229. The reversal of 13121020200 is 202012131.

It is a super-2 number, since 2×13121020200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10933584 + ... + 10934783.

It is an arithmetic number, because the mean of its divisors is an integer number (847399260).

Almost surely, 2^13121020200 is an apocalyptic number.

13121020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121020200 is an abundant number, since it is smaller than the sum of its proper divisors (27554144280).

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

13121020200 is a wasteful number, since it uses less digits than its factorization.

13121020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21868386 (or 21868377 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 13121020200 its reverse (202012131), we get a palindrome (13323032331).

The spelling of 13121020200 in words is "thirteen billion, one hundred twenty-one million, twenty thousand, two hundred".