101012020891139 has 2 divisors, whose sum is σ = 101012020891140. Its totient is φ = 101012020891138.

The previous prime is 101012020891109. The next prime is 101012020891153. The reversal of 101012020891139 is 931198020210101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101012020891139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (101012020891109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506010445569 + 50506010445570.

It is an arithmetic number, because the mean of its divisors is an integer number (50506010445570).

Almost surely, 2^{101012020891139} is an apocalyptic number.

101012020891139 is a deficient number, since it is larger than the sum of its proper divisors (1).

101012020891139 is an equidigital number, since it uses as much as digits as its factorization.

101012020891139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 38.

The spelling of 101012020891139 in words is "one hundred one trillion, twelve billion, twenty million, eight hundred ninety-one thousand, one hundred thirty-nine".