20431314103 has 16 divisors (see below), whose sum is σ = 20917923840. Its totient is φ = 19951880256.

The previous prime is 20431314097. The next prime is 20431314107. The reversal of 20431314103 is 30141313402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20431314103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431314107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2561800 + ... + 2569762.

It is an arithmetic number, because the mean of its divisors is an integer number (1307370240).

Almost surely, 2^20431314103 is an apocalyptic number.

20431314103 is a deficient number, since it is larger than the sum of its proper divisors (486609737).

20431314103 is a wasteful number, since it uses less digits than its factorization.

20431314103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8406.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20431314103 its reverse (30141313402), we get a palindrome (50572627505).

The spelling of 20431314103 in words is "twenty billion, four hundred thirty-one million, three hundred fourteen thousand, one hundred three".