31111234124 has 12 divisors (see below), whose sum is σ = 54469869048. Its totient is φ = 15548414400.

The previous prime is 31111234123. The next prime is 31111234129. The reversal of 31111234124 is 42143211113.

It is a self number, because there is not a number n which added to its sum of digits gives 31111234124.

It is not an unprimeable number, because it can be changed into a prime (31111234123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1790942 + ... + 1808229.

It is an arithmetic number, because the mean of its divisors is an integer number (4539155754).

Almost surely, 2^31111234124 is an apocalyptic number.

It is an amenable number.

31111234124 is a deficient number, since it is larger than the sum of its proper divisors (23358634924).

31111234124 is a wasteful number, since it uses less digits than its factorization.

31111234124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601336 (or 3601334 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 31111234124 its reverse (42143211113), we get a palindrome (73254445237).

The spelling of 31111234124 in words is "thirty-one billion, one hundred eleven million, two hundred thirty-four thousand, one hundred twenty-four".