31156000124 has 12 divisors (see below), whose sum is σ = 54524635704. Its totient is φ = 15577532784.

The previous prime is 31156000061. The next prime is 31156000129. The reversal of 31156000124 is 42100065113.

It is a self number, because there is not a number n which added to its sum of digits gives 31156000124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31156000129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64454 + ... + 257810.

It is an arithmetic number, because the mean of its divisors is an integer number (4543719642).

Almost surely, 2^31156000124 is an apocalyptic number.

It is an amenable number.

31156000124 is a deficient number, since it is larger than the sum of its proper divisors (23368635580).

31156000124 is a wasteful number, since it uses less digits than its factorization.

31156000124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233644 (or 233642 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 31156000124 its reverse (42100065113), we get a palindrome (73256065237).

The spelling of 31156000124 in words is "thirty-one billion, one hundred fifty-six million, one hundred twenty-four", and thus it is an aban number.