1311436126 has 128 divisors (see below), whose sum is σ = 2903040000. Its totient is φ = 427109760.

The previous prime is 1311436111. The next prime is 1311436141. The reversal of 1311436126 is 6216341131.

It is an interprime number because it is at equal distance from previous prime (1311436111) and next prime (1311436141).

It is a junction number, because it is equal to n+sod(n) for n = 1311436094 and 1311436103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 874125 + ... + 875623.

It is an arithmetic number, because the mean of its divisors is an integer number (22680000).

Almost surely, 2^1311436126 is an apocalyptic number.

1311436126 is an abundant number, since it is smaller than the sum of its proper divisors (1591603874).

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

1311436126 is a wasteful number, since it uses less digits than its factorization.

1311436126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574.

The product of its digits is 2592, while the sum is 28.

The square root of 1311436126 is about 36213.7560327564. The cubic root of 1311436126 is about 1094.5838791943.

Adding to 1311436126 its reverse (6216341131), we get a palindrome (7527777257).

The spelling of 1311436126 in words is "one billion, three hundred eleven million, four hundred thirty-six thousand, one hundred twenty-six".