104320431 has 48 divisors (see below), whose sum is σ = 164617440. Its totient is φ = 63452160.

The previous prime is 104320423. The next prime is 104320439. The reversal of 104320431 is 134023401.

It is an interprime number because it is at equal distance from previous prime (104320423) and next prime (104320439).

It is not a de Polignac number, because 104320431 - 2³ = 104320423 is a prime.

It is a super-2 number, since 2×104320431² = 21765504648051522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104320439) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 761395 + ... + 761531.

It is an arithmetic number, because the mean of its divisors is an integer number (3429530).

Almost surely, 2^104320431 is an apocalyptic number.

104320431 is a deficient number, since it is larger than the sum of its proper divisors (60297009).

104320431 is a wasteful number, since it uses less digits than its factorization.

104320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 293 counting only the distinct ones).

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

The square root of 104320431 is about 10213.7373668995. The cubic root of 104320431 is about 470.7494170613.

Adding to 104320431 its reverse (134023401), we get a palindrome (238343832).

The spelling of 104320431 in words is "one hundred four million, three hundred twenty thousand, four hundred thirty-one".