1317192912 has 360 divisors, whose sum is σ = 4630953600. Its totient is φ = 347203584.

The previous prime is 1317192889. The next prime is 1317192931. The reversal of 1317192912 is 2192917131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9476139 + ... + 9476277.

It is an arithmetic number, because the mean of its divisors is an integer number (12863760).

Almost surely, 2^1317192912 is an apocalyptic number.

1317192912 is a gapful number since it is divisible by the number (12) 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 1317192912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315476800).

1317192912 is an abundant number, since it is smaller than the sum of its proper divisors (3313760688).

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

1317192912 is a wasteful number, since it uses less digits than its factorization.

1317192912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 247 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 1317192912 is about 36293.1524119909. The cubic root of 1317192912 is about 1096.1831659702.

The spelling of 1317192912 in words is "one billion, three hundred seventeen million, one hundred ninety-two thousand, nine hundred twelve".