20102001011994 has 128 divisors (see below), whose sum is σ = 44235158630400. Its totient is φ = 6039507640320.

The previous prime is 20102001011947. The next prime is 20102001012001. The reversal of 20102001011994 is 49911010020102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6658495017 + ... + 6658498035.

It is an arithmetic number, because the mean of its divisors is an integer number (345587176800).

Almost surely, 2^{20102001011994} is an apocalyptic number.

20102001011994 is an abundant number, since it is smaller than the sum of its proper divisors (24133157618406).

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

20102001011994 is a wasteful number, since it uses less digits than its factorization.

20102001011994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 20102001011994 in words is "twenty trillion, one hundred two billion, one million, eleven thousand, nine hundred ninety-four".