102304431 has 16 divisors (see below), whose sum is σ = 156789600. Its totient is φ = 65850624.

The previous prime is 102304429. The next prime is 102304451. The reversal of 102304431 is 134403201.

102304431 is a `hidden beast` number, since 1 + 0 + 230 + 4 + 431 = 666.

It is not a de Polignac number, because 102304431 - 2¹ = 102304429 is a prime.

It is a super-2 number, since 2×102304431² = 20932393204467522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102304421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64546 + ... + 66111.

It is an arithmetic number, because the mean of its divisors is an integer number (9799350).

Almost surely, 2^102304431 is an apocalyptic number.

102304431 is a deficient number, since it is larger than the sum of its proper divisors (54485169).

102304431 is a wasteful number, since it uses less digits than its factorization.

102304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130695 (or 130689 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102304431 is about 10114.5652897196. The cubic root of 102304431 is about 467.6972483063.

Adding to 102304431 its reverse (134403201), we get a palindrome (236707632).

The spelling of 102304431 in words is "one hundred two million, three hundred four thousand, four hundred thirty-one".