20129393102 has 32 divisors (see below), whose sum is σ = 37411416000. Its totient is φ = 7909820928.

The previous prime is 20129392999. The next prime is 20129393183. The reversal of 20129393102 is 20139392102.

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, 344027 + ... + 398262.

It is an arithmetic number, because the mean of its divisors is an integer number (1169106750).

Almost surely, 2^20129393102 is an apocalyptic number.

20129393102 is a deficient number, since it is larger than the sum of its proper divisors (17282022898).

20129393102 is a wasteful number, since it uses less digits than its factorization.

20129393102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742460.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 20129393102 in words is "twenty billion, one hundred twenty-nine million, three hundred ninety-three thousand, one hundred two".