20129492102 has 32 divisors (see below), whose sum is σ = 31902159744. Its totient is φ = 9515008000.

The previous prime is 20129492081. The next prime is 20129492161.

20129492102 is nontrivially palindromic in base 10.

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, 363398 + ... + 415110.

It is an arithmetic number, because the mean of its divisors is an integer number (996942492).

Almost surely, 2^20129492102 is an apocalyptic number.

20129492102 is a deficient number, since it is larger than the sum of its proper divisors (11772667642).

20129492102 is a wasteful number, since it uses less digits than its factorization.

20129492102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51904.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 20129492102 in words is "twenty billion, one hundred twenty-nine million, four hundred ninety-two thousand, one hundred two".