102304400404121 has 2 divisors, whose sum is σ = 102304400404122. Its totient is φ = 102304400404120.

The previous prime is 102304400404097. The next prime is 102304400404139. The reversal of 102304400404121 is 121404004403201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99959104182025 + 2345296222096 = 9997955^2 + 1531436^2 .

It is a cyclic number.

It is not a de Polignac number, because 102304400404121 - 2²⁶ = 102304333295257 is a prime.

It is a super-2 number, since 2×102304400404121² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102304400404321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51152200202060 + 51152200202061.

It is an arithmetic number, because the mean of its divisors is an integer number (51152200202061).

Almost surely, 2^{102304400404121} is an apocalyptic number.

It is an amenable number.

102304400404121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102304400404121 is an equidigital number, since it uses as much as digits as its factorization.

102304400404121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 102304400404121 its reverse (121404004403201), we get a palindrome (223708404807322).

The spelling of 102304400404121 in words is "one hundred two trillion, three hundred four billion, four hundred million, four hundred four thousand, one hundred twenty-one".