202120111139 has 2 divisors, whose sum is σ = 202120111140. Its totient is φ = 202120111138.

The previous prime is 202120111133. The next prime is 202120111201. The reversal of 202120111139 is 931111021202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202120111139 - 2⁸ = 202120110883 is a prime.

It is not a weakly prime, because it can be changed into another prime (202120111133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060055569 + 101060055570.

It is an arithmetic number, because the mean of its divisors is an integer number (101060055570).

Almost surely, 2^202120111139 is an apocalyptic number.

202120111139 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120111139 is an equidigital number, since it uses as much as digits as its factorization.

202120111139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 202120111139 in words is "two hundred two billion, one hundred twenty million, one hundred eleven thousand, one hundred thirty-nine".