1311013254 has 32 divisors (see below), whose sum is σ = 2691135360. Its totient is φ = 425633472.

The previous prime is 1311013211. The next prime is 1311013261. The reversal of 1311013254 is 4523101131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311013254.

It is a congruent number.

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, 17457 + ... + 54099.

It is an arithmetic number, because the mean of its divisors is an integer number (84097980).

Almost surely, 2^1311013254 is an apocalyptic number.

1311013254 is an abundant number, since it is smaller than the sum of its proper divisors (1380122106).

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

1311013254 is a wasteful number, since it uses less digits than its factorization.

1311013254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36804.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1311013254 is about 36207.9170071961. The cubic root of 1311013254 is about 1094.4662171838.

Adding to 1311013254 its reverse (4523101131), we get a palindrome (5834114385).

The spelling of 1311013254 in words is "one billion, three hundred eleven million, thirteen thousand, two hundred fifty-four".