31307417124 has 96 divisors (see below), whose sum is σ = 83312570880. Its totient is φ = 9088547328.

The previous prime is 31307417093. The next prime is 31307417137. The reversal of 31307417124 is 42171470313.

It is a super-2 number, since 2×31307417124² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72747 + ... + 260589.

It is an arithmetic number, because the mean of its divisors is an integer number (867839280).

Almost surely, 2^31307417124 is an apocalyptic number.

31307417124 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31307417124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41656285440).

31307417124 is an abundant number, since it is smaller than the sum of its proper divisors (52005153756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31307417124 is a wasteful number, since it uses less digits than its factorization.

31307417124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187929 (or 187927 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

Adding to 31307417124 its reverse (42171470313), we get a palindrome (73478887437).

The spelling of 31307417124 in words is "thirty-one billion, three hundred seven million, four hundred seventeen thousand, one hundred twenty-four".