1297343112 has 32 divisors (see below), whose sum is σ = 3492847680. Its totient is φ = 399182400.

The previous prime is 1297343111. The next prime is 1297343137. The reversal of 1297343112 is 2113437921.

It is not an unprimeable number, because it can be changed into a prime (1297343111) 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, 2078764 + ... + 2079387.

It is an arithmetic number, because the mean of its divisors is an integer number (109151490).

Almost surely, 2^1297343112 is an apocalyptic number.

1297343112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1297343112 is an abundant number, since it is smaller than the sum of its proper divisors (2195504568).

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

1297343112 is a wasteful number, since it uses less digits than its factorization.

1297343112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158173 (or 4158169 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 1297343112 is about 36018.6495027229. The cubic root of 1297343112 is about 1090.6488609235.

The spelling of 1297343112 in words is "one billion, two hundred ninety-seven million, three hundred forty-three thousand, one hundred twelve".