102172262393 has 2 divisors, whose sum is σ = 102172262394. Its totient is φ = 102172262392.

The previous prime is 102172262321. The next prime is 102172262407. The reversal of 102172262393 is 393262271201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53495989264 + 48676273129 = 231292^2 + 220627^2 .

It is a cyclic number.

It is not a de Polignac number, because 102172262393 - 2²⁶ = 102105153529 is a prime.

It is not a weakly prime, because it can be changed into another prime (102172262303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51086131196 + 51086131197.

It is an arithmetic number, because the mean of its divisors is an integer number (51086131197).

Almost surely, 2^102172262393 is an apocalyptic number.

It is an amenable number.

102172262393 is a deficient number, since it is larger than the sum of its proper divisors (1).

102172262393 is an equidigital number, since it uses as much as digits as its factorization.

102172262393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 102172262393 in words is "one hundred two billion, one hundred seventy-two million, two hundred sixty-two thousand, three hundred ninety-three".