102130211251 has 2 divisors, whose sum is σ = 102130211252. Its totient is φ = 102130211250.

The previous prime is 102130211243. The next prime is 102130211503. The reversal of 102130211251 is 152112031201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102130211251 - 2³ = 102130211243 is a prime.

It is not a weakly prime, because it can be changed into another prime (102130211221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065105625 + 51065105626.

It is an arithmetic number, because the mean of its divisors is an integer number (51065105626).

Almost surely, 2^102130211251 is an apocalyptic number.

102130211251 is a deficient number, since it is larger than the sum of its proper divisors (1).

102130211251 is an equidigital number, since it uses as much as digits as its factorization.

102130211251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 102130211251 its reverse (152112031201), we get a palindrome (254242242452).

The spelling of 102130211251 in words is "one hundred two billion, one hundred thirty million, two hundred eleven thousand, two hundred fifty-one".