1311030342 has 24 divisors (see below), whose sum is σ = 2872485720. Its totient is φ = 432099360.

The previous prime is 1311030341. The next prime is 1311030349. The reversal of 1311030342 is 2430301131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311030341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407584 + ... + 410787.

It is an arithmetic number, because the mean of its divisors is an integer number (119686905).

Almost surely, 2^1311030342 is an apocalyptic number.

1311030342 is an abundant number, since it is smaller than the sum of its proper divisors (1561455378).

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

1311030342 is a wasteful number, since it uses less digits than its factorization.

1311030342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818468 (or 818465 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1311030342 is about 36208.1529769194. The cubic root of 1311030342 is about 1094.4709723245.

Adding to 1311030342 its reverse (2430301131), we get a palindrome (3741331473).

The spelling of 1311030342 in words is "one billion, three hundred eleven million, thirty thousand, three hundred forty-two".