202100020139 has 2 divisors, whose sum is σ = 202100020140. Its totient is φ = 202100020138.

The previous prime is 202100020117. The next prime is 202100020153. The reversal of 202100020139 is 931020001202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202100020139 - 2³² = 197805052843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202100020139.

It is not a weakly prime, because it can be changed into another prime (202100020939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050010069 + 101050010070.

It is an arithmetic number, because the mean of its divisors is an integer number (101050010070).

Almost surely, 2^202100020139 is an apocalyptic number.

202100020139 is a deficient number, since it is larger than the sum of its proper divisors (1).

202100020139 is an equidigital number, since it uses as much as digits as its factorization.

202100020139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 202100020139 in words is "two hundred two billion, one hundred million, twenty thousand, one hundred thirty-nine".