12317031780 has 48 divisors (see below), whose sum is σ = 34566322560. Its totient is φ = 3277052928.

The previous prime is 12317031767. The next prime is 12317031781. The reversal of 12317031780 is 8713071321.

It is a super-3 number, since 3×12317031780³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12317031781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207469 + ... + 260148.

It is an arithmetic number, because the mean of its divisors is an integer number (720131720).

Almost surely, 2^12317031780 is an apocalyptic number.

12317031780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12317031780 is an abundant number, since it is smaller than the sum of its proper divisors (22249290780).

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

12317031780 is a wasteful number, since it uses less digits than its factorization.

12317031780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468068 (or 468066 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The spelling of 12317031780 in words is "twelve billion, three hundred seventeen million, thirty-one thousand, seven hundred eighty".