102121021000039 has 2 divisors, whose sum is σ = 102121021000040. Its totient is φ = 102121021000038.

The previous prime is 102121020999979. The next prime is 102121021000051. The reversal of 102121021000039 is 930000120121201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102121021000039 is a prime.

It is a super-3 number, since 3×102121021000039³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102121020999983 and 102121021000019.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102121021070039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060510500019 + 51060510500020.

It is an arithmetic number, because the mean of its divisors is an integer number (51060510500020).

Almost surely, 2^{102121021000039} is an apocalyptic number.

102121021000039 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121021000039 is an equidigital number, since it uses as much as digits as its factorization.

102121021000039 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 22.

The spelling of 102121021000039 in words is "one hundred two trillion, one hundred twenty-one billion, twenty-one million, thirty-nine", and thus it is an aban number.