1311372342 has 48 divisors (see below), whose sum is σ = 3367483392. Its totient is φ = 374676840.

The previous prime is 1311372319. The next prime is 1311372353. The reversal of 1311372342 is 2432731131.

It is a happy number.

1311372342 is a `hidden beast` number, since 1 + 311 + 3 + 7 + 2 + 342 = 666.

1311372342 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189334 + ... + 196137.

It is an arithmetic number, because the mean of its divisors is an integer number (70155904).

Almost surely, 2^1311372342 is an apocalyptic number.

1311372342 is an abundant number, since it is smaller than the sum of its proper divisors (2056111050).

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

1311372342 is an equidigital number, since it uses as much as digits as its factorization.

1311372342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385495 (or 385483 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 1311372342 is about 36212.8753622244. The cubic root of 1311372342 is about 1094.5661332366.

The spelling of 1311372342 in words is "one billion, three hundred eleven million, three hundred seventy-two thousand, three hundred forty-two".