31031113034103 has 16 divisors (see below), whose sum is σ = 50922852158976. Its totient is φ = 16368059622240.

The previous prime is 31031113034057. The next prime is 31031113034107. The reversal of 31031113034103 is 30143031113013.

It is not a de Polignac number, because 31031113034103 - 2¹⁶ = 31031112968567 is a prime.

It is a super-2 number, since 2×31031113034103² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031113034107) 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, 56833540083 + ... + 56833540628.

It is an arithmetic number, because the mean of its divisors is an integer number (3182678259936).

Almost surely, 2^{31031113034103} is an apocalyptic number.

31031113034103 is a deficient number, since it is larger than the sum of its proper divisors (19891739124873).

31031113034103 is a wasteful number, since it uses less digits than its factorization.

31031113034103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113667080734.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31031113034103 its reverse (30143031113013), we get a palindrome (61174144147116).

The spelling of 31031113034103 in words is "thirty-one trillion, thirty-one billion, one hundred thirteen million, thirty-four thousand, one hundred three".