103431031 has 8 divisors (see below), whose sum is σ = 114194304. Its totient is φ = 92894520.

The previous prime is 103431019. The next prime is 103431059. The reversal of 103431031 is 130134301.

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

It is a cyclic number.

It is not a de Polignac number, because 103431031 - 2⁷ = 103430903 is a prime.

It is a super-2 number, since 2×103431031² = 21395956347445922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103430996 and 103431014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103431061) 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, 55731 + ... + 57556.

It is an arithmetic number, because the mean of its divisors is an integer number (14274288).

Almost surely, 2^103431031 is an apocalyptic number.

103431031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103431031 is a deficient number, since it is larger than the sum of its proper divisors (10763273).

103431031 is a wasteful number, since it uses less digits than its factorization.

103431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113381.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 103431031 is about 10170.1047683886. The cubic root of 103431031 is about 469.4077813314.

Adding to 103431031 its reverse (130134301), we get a palindrome (233565332).

It can be divided in two parts, 103 and 431031, that added together give a palindrome (431134).

The spelling of 103431031 in words is "one hundred three million, four hundred thirty-one thousand, thirty-one".