102213131132251 has 2 divisors, whose sum is σ = 102213131132252. Its totient is φ = 102213131132250.

The previous prime is 102213131132201. The next prime is 102213131132311. The reversal of 102213131132251 is 152231131312201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102213131132251 - 2¹⁹ = 102213130607963 is a prime.

It is not a weakly prime, because it can be changed into another prime (102213131132201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106565566125 + 51106565566126.

It is an arithmetic number, because the mean of its divisors is an integer number (51106565566126).

Almost surely, 2^{102213131132251} is an apocalyptic number.

102213131132251 is a deficient number, since it is larger than the sum of its proper divisors (1).

102213131132251 is an equidigital number, since it uses as much as digits as its factorization.

102213131132251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 102213131132251 its reverse (152231131312201), we get a palindrome (254444262444452).

The spelling of 102213131132251 in words is "one hundred two trillion, two hundred thirteen billion, one hundred thirty-one million, one hundred thirty-two thousand, two hundred fifty-one".