13212953500 has 48 divisors (see below), whose sum is σ = 28868898240. Its totient is φ = 5283019200.

The previous prime is 13212953473. The next prime is 13212953531. The reversal of 13212953500 is 535921231.

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, 1862961 + ... + 1870039.

It is an arithmetic number, because the mean of its divisors is an integer number (601435380).

Almost surely, 2^13212953500 is an apocalyptic number.

13212953500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212953500 is an abundant number, since it is smaller than the sum of its proper divisors (15655944740).

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

13212953500 is a wasteful number, since it uses less digits than its factorization.

13212953500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10831 (or 10819 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 13212953500 in words is "thirteen billion, two hundred twelve million, nine hundred fifty-three thousand, five hundred".