102375612121 has 2 divisors, whose sum is σ = 102375612122. Its totient is φ = 102375612120.

The previous prime is 102375612083. The next prime is 102375612149. The reversal of 102375612121 is 121216573201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60054893721 + 42320718400 = 245061^2 + 205720^2 .

It is an emirp because it is prime and its reverse (121216573201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102375612121 - 2²⁹ = 101838741209 is a prime.

It is not a weakly prime, because it can be changed into another prime (102375612151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51187806060 + 51187806061.

It is an arithmetic number, because the mean of its divisors is an integer number (51187806061).

Almost surely, 2^102375612121 is an apocalyptic number.

It is an amenable number.

102375612121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102375612121 is an equidigital number, since it uses as much as digits as its factorization.

102375612121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 102375612121 in words is "one hundred two billion, three hundred seventy-five million, six hundred twelve thousand, one hundred twenty-one".