31313200124 has 12 divisors (see below), whose sum is σ = 54830403264. Its totient is φ = 15647370624.

The previous prime is 31313200123. The next prime is 31313200129. The reversal of 31313200124 is 42100231313.

It is a junction number, because it is equal to n+sod(n) for n = 31313200096 and 31313200105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313200123) 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 3 ways as a sum of consecutive naturals, for example, 2299724 + ... + 2313299.

It is an arithmetic number, because the mean of its divisors is an integer number (4569200272).

Almost surely, 2^31313200124 is an apocalyptic number.

It is an amenable number.

31313200124 is a deficient number, since it is larger than the sum of its proper divisors (23517203140).

31313200124 is a wasteful number, since it uses less digits than its factorization.

31313200124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614724 (or 4614722 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31313200124 its reverse (42100231313), we get a palindrome (73413431437).

The spelling of 31313200124 in words is "thirty-one billion, three hundred thirteen million, two hundred thousand, one hundred twenty-four".