12931729900 has 36 divisors (see below), whose sum is σ = 28089295920. Its totient is φ = 5167633600.

The previous prime is 12931729861. The next prime is 12931729933. The reversal of 12931729900 is 992713921.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40386 + ... + 165814.

It is an arithmetic number, because the mean of its divisors is an integer number (780258220).

Almost surely, 2^12931729900 is an apocalyptic number.

12931729900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12931729900 is an abundant number, since it is smaller than the sum of its proper divisors (15157566020).

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

12931729900 is a wasteful number, since it uses less digits than its factorization.

12931729900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126474 (or 126467 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 12931729900 in words is "twelve billion, nine hundred thirty-one million, seven hundred twenty-nine thousand, nine hundred".