102431339 has 4 divisors (see below), whose sum is σ = 102997440. Its totient is φ = 101865240.

The previous prime is 102431327. The next prime is 102431359. The reversal of 102431339 is 933134201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102431339 - 2⁴ = 102431323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102431359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282779 + ... + 283140.

It is an arithmetic number, because the mean of its divisors is an integer number (25749360).

Almost surely, 2^102431339 is an apocalyptic number.

102431339 is a deficient number, since it is larger than the sum of its proper divisors (566101).

102431339 is an equidigital number, since it uses as much as digits as its factorization.

102431339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566100.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 102431339 is about 10120.8368725121. The cubic root of 102431339 is about 467.8905602210.

The spelling of 102431339 in words is "one hundred two million, four hundred thirty-one thousand, three hundred thirty-nine".