102100401121 has 2 divisors, whose sum is σ = 102100401122. Its totient is φ = 102100401120.

The previous prime is 102100401113. The next prime is 102100401163. The reversal of 102100401121 is 121104001201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102080250000 + 20151121 = 319500^2 + 4489^2 .

It is a cyclic number.

It is not a de Polignac number, because 102100401121 - 2³ = 102100401113 is a prime.

It is not a weakly prime, because it can be changed into another prime (102100402121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050200560 + 51050200561.

It is an arithmetic number, because the mean of its divisors is an integer number (51050200561).

Almost surely, 2^102100401121 is an apocalyptic number.

It is an amenable number.

102100401121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100401121 is an equidigital number, since it uses as much as digits as its factorization.

102100401121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102100401121 its reverse (121104001201), we get a palindrome (223204402322).

The spelling of 102100401121 in words is "one hundred two billion, one hundred million, four hundred one thousand, one hundred twenty-one".