1311143034 has 32 divisors (see below), whose sum is σ = 2638546560. Its totient is φ = 434347200.

The previous prime is 1311143027. The next prime is 1311143077. The reversal of 1311143034 is 4303411131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311143034.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784752 + ... + 786420.

It is an arithmetic number, because the mean of its divisors is an integer number (82454580).

Almost surely, 2^1311143034 is an apocalyptic number.

1311143034 is an abundant number, since it is smaller than the sum of its proper divisors (1327403526).

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

1311143034 is a wasteful number, since it uses less digits than its factorization.

1311143034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1311143034 is about 36209.7091123362. The cubic root of 1311143034 is about 1094.5023305077.

Adding to 1311143034 its reverse (4303411131), we get a palindrome (5614554165).

The spelling of 1311143034 in words is "one billion, three hundred eleven million, one hundred forty-three thousand, thirty-four".