103431323121 has 64 divisors (see below), whose sum is σ = 169102272000. Its totient is φ = 56129068800.

The previous prime is 103431323117. The next prime is 103431323153. The reversal of 103431323121 is 121323134301.

It is not a de Polignac number, because 103431323121 - 2² = 103431323117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103431323091 and 103431323100.

It is not an unprimeable number, because it can be changed into a prime (103431323111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1791891 + ... + 1848711.

It is an arithmetic number, because the mean of its divisors is an integer number (2642223000).

Almost surely, 2^103431323121 is an apocalyptic number.

It is an amenable number.

103431323121 is a deficient number, since it is larger than the sum of its proper divisors (65670948879).

103431323121 is an equidigital number, since it uses as much as digits as its factorization.

103431323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56935 (or 56921 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 103431323121 its reverse (121323134301), we get a palindrome (224754457422).

The spelling of 103431323121 in words is "one hundred three billion, four hundred thirty-one million, three hundred twenty-three thousand, one hundred twenty-one".