31234111111 has 12 divisors (see below), whose sum is σ = 37178526792. Its totient is φ = 26149486608.

The previous prime is 31234111093. The next prime is 31234111147. The reversal of 31234111111 is 11111143213.

It is not a de Polignac number, because 31234111111 - 2⁷ = 31234110983 is a prime.

It is a Duffinian number.

31234111111 is a modest number, since divided by 111111 gives 31234 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234115111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7409880 + ... + 7414093.

It is an arithmetic number, because the mean of its divisors is an integer number (3098210566).

Almost surely, 2^31234111111 is an apocalyptic number.

31234111111 is a deficient number, since it is larger than the sum of its proper divisors (5944415681).

31234111111 is a wasteful number, since it uses less digits than its factorization.

31234111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14824030 (or 14824023 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

Adding to 31234111111 its reverse (11111143213), we get a palindrome (42345254324).

The spelling of 31234111111 in words is "thirty-one billion, two hundred thirty-four million, one hundred eleven thousand, one hundred eleven".