102021112121039 has 2 divisors, whose sum is σ = 102021112121040. Its totient is φ = 102021112121038.

The previous prime is 102021112121009. The next prime is 102021112121083. The reversal of 102021112121039 is 930121211120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102021112121039 - 2¹⁶ = 102021112055503 is a prime.

It is a super-2 number, since 2×102021112121039² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102021112120999 and 102021112121017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102021112121009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010556060519 + 51010556060520.

It is an arithmetic number, because the mean of its divisors is an integer number (51010556060520).

Almost surely, 2^{102021112121039} is an apocalyptic number.

102021112121039 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021112121039 is an equidigital number, since it uses as much as digits as its factorization.

102021112121039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 102021112121039 in words is "one hundred two trillion, twenty-one billion, one hundred twelve million, one hundred twenty-one thousand, thirty-nine".