20010211012139 has 2 divisors, whose sum is σ = 20010211012140. Its totient is φ = 20010211012138.

The previous prime is 20010211012073. The next prime is 20010211012157. The reversal of 20010211012139 is 93121011201002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20010211012139 - 2¹⁶ = 20010210946603 is a prime.

It is not a weakly prime, because it can be changed into another prime (20010211011139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005105506069 + 10005105506070.

It is an arithmetic number, because the mean of its divisors is an integer number (10005105506070).

Almost surely, 2^{20010211012139} is an apocalyptic number.

20010211012139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010211012139 is an equidigital number, since it uses as much as digits as its factorization.

20010211012139 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 23.

The spelling of 20010211012139 in words is "twenty trillion, ten billion, two hundred eleven million, twelve thousand, one hundred thirty-nine".