1317672012 has 24 divisors (see below), whose sum is σ = 3075214912. Its totient is φ = 439131600.

The previous prime is 1317672011. The next prime is 1317672017. The reversal of 1317672012 is 2102767131.

It is not an unprimeable number, because it can be changed into a prime (1317672011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72087 + ... + 88497.

Almost surely, 2^1317672012 is an apocalyptic number.

1317672012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1317672012 is an abundant number, since it is smaller than the sum of its proper divisors (1757542900).

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

1317672012 is a wasteful number, since it uses less digits than its factorization.

1317672012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23109 (or 23107 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1317672012 is about 36299.7522305594. The cubic root of 1317672012 is about 1096.3160540457.

The spelling of 1317672012 in words is "one billion, three hundred seventeen million, six hundred seventy-two thousand, twelve".