31020002200139 has 2 divisors, whose sum is σ = 31020002200140. Its totient is φ = 31020002200138.

The previous prime is 31020002200049. The next prime is 31020002200147. The reversal of 31020002200139 is 93100220002013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31020002200139 - 2²⁰ = 31020001151563 is a prime.

It is a super-2 number, since 2×31020002200139² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31020002200189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510001100069 + 15510001100070.

It is an arithmetic number, because the mean of its divisors is an integer number (15510001100070).

Almost surely, 2^{31020002200139} is an apocalyptic number.

31020002200139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020002200139 is an equidigital number, since it uses as much as digits as its factorization.

31020002200139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 31020002200139 in words is "thirty-one trillion, twenty billion, two million, two hundred thousand, one hundred thirty-nine".