317231121000 has 64 divisors (see below), whose sum is σ = 989761106880. Its totient is φ = 84594964800.

The previous prime is 317231120951. The next prime is 317231121007. The reversal of 317231121000 is 121132713.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (317231121007) 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, 52868854 + ... + 52874853.

It is an arithmetic number, because the mean of its divisors is an integer number (15465017295).

Almost surely, 2^317231121000 is an apocalyptic number.

317231121000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

317231121000 is an abundant number, since it is smaller than the sum of its proper divisors (672529985880).

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

317231121000 is a wasteful number, since it uses less digits than its factorization.

317231121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105743731 (or 105743717 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

Adding to 317231121000 its reverse (121132713), we get a palindrome (317352253713).

The spelling of 317231121000 in words is "three hundred seventeen billion, two hundred thirty-one million, one hundred twenty-one thousand".