102100102021139 has 2 divisors, whose sum is σ = 102100102021140. Its totient is φ = 102100102021138.

The previous prime is 102100102021123. The next prime is 102100102021171. The reversal of 102100102021139 is 931120201001201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102100102021139 - 2⁴ = 102100102021123 is a prime.

It is a super-2 number, since 2×102100102021139² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102100102021189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050051010569 + 51050051010570.

It is an arithmetic number, because the mean of its divisors is an integer number (51050051010570).

Almost surely, 2^{102100102021139} is an apocalyptic number.

102100102021139 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100102021139 is an equidigital number, since it uses as much as digits as its factorization.

102100102021139 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 102100102021139 in words is "one hundred two trillion, one hundred billion, one hundred two million, twenty-one thousand, one hundred thirty-nine".