102312129 has 8 divisors (see below), whose sum is σ = 136464640. Its totient is φ = 68183856.

The previous prime is 102312083. The next prime is 102312139. The reversal of 102312129 is 921213201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102312129 - 2²⁰ = 101263553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102312139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9507 + ... + 17175.

It is an arithmetic number, because the mean of its divisors is an integer number (17058080).

Almost surely, 2^102312129 is an apocalyptic number.

It is an amenable number.

102312129 is a deficient number, since it is larger than the sum of its proper divisors (34152511).

102312129 is an equidigital number, since it uses as much as digits as its factorization.

102312129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12119.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 102312129 is about 10114.9458228900. The cubic root of 102312129 is about 467.7089787956.

The spelling of 102312129 in words is "one hundred two million, three hundred twelve thousand, one hundred twenty-nine".