31103423043 has 96 divisors (see below), whose sum is σ = 54899539968. Its totient is φ = 15302105280.

The previous prime is 31103423027. The next prime is 31103423047. The reversal of 31103423043 is 34032430113.

It is not a de Polignac number, because 31103423043 - 2⁴ = 31103423027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31103423047) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6017046 + ... + 6022212.

It is an arithmetic number, because the mean of its divisors is an integer number (571870208).

Almost surely, 2^31103423043 is an apocalyptic number.

31103423043 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31103423043 is a deficient number, since it is larger than the sum of its proper divisors (23796116925).

31103423043 is a wasteful number, since it uses less digits than its factorization.

31103423043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325 (or 5314 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31103423043 its reverse (34032430113), we get a palindrome (65135853156).

The spelling of 31103423043 in words is "thirty-one billion, one hundred three million, four hundred twenty-three thousand, forty-three".