31160430312 has 128 divisors (see below), whose sum is σ = 90342950400. Its totient is φ = 8856864000.

The previous prime is 31160430299. The next prime is 31160430319. The reversal of 31160430312 is 21303406113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31160430319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475863 + ... + 537369.

It is an arithmetic number, because the mean of its divisors is an integer number (705804300).

Almost surely, 2^31160430312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31160430312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45171475200).

31160430312 is an abundant number, since it is smaller than the sum of its proper divisors (59182520088).

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

31160430312 is a wasteful number, since it uses less digits than its factorization.

31160430312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61647 (or 61643 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31160430312 its reverse (21303406113), we get a palindrome (52463836425).

The spelling of 31160430312 in words is "thirty-one billion, one hundred sixty million, four hundred thirty thousand, three hundred twelve".