103204431 has 12 divisors (see below), whose sum is σ = 162625320. Its totient is φ = 62548080.

The previous prime is 103204379. The next prime is 103204459. The reversal of 103204431 is 134402301.

It is not a de Polignac number, because 103204431 - 2¹⁰ = 103203407 is a prime.

It is a super-2 number, since 2×103204431² = 21302309156067522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103204471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521136 + ... + 521333.

It is an arithmetic number, because the mean of its divisors is an integer number (13552110).

Almost surely, 2^103204431 is an apocalyptic number.

103204431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103204431 is a deficient number, since it is larger than the sum of its proper divisors (59420889).

103204431 is a wasteful number, since it uses less digits than its factorization.

103204431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042486 (or 1042483 counting only the distinct ones).

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

The square root of 103204431 is about 10158.9581650876. The cubic root of 103204431 is about 469.0647328449.

Adding to 103204431 its reverse (134402301), we get a palindrome (237606732).

The spelling of 103204431 in words is "one hundred three million, two hundred four thousand, four hundred thirty-one".