102812506039 has 2 divisors, whose sum is σ = 102812506040. Its totient is φ = 102812506038.

The previous prime is 102812506021. The next prime is 102812506061. The reversal of 102812506039 is 930605218201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102812506039 - 2²³ = 102804117431 is a prime.

It is a super-2 number, since 2×102812506039² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102812505989 and 102812506007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102812506739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51406253019 + 51406253020.

It is an arithmetic number, because the mean of its divisors is an integer number (51406253020).

Almost surely, 2^102812506039 is an apocalyptic number.

102812506039 is a deficient number, since it is larger than the sum of its proper divisors (1).

102812506039 is an equidigital number, since it uses as much as digits as its factorization.

102812506039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 102812506039 in words is "one hundred two billion, eight hundred twelve million, five hundred six thousand, thirty-nine".