1311124455 has 32 divisors (see below), whose sum is σ = 2380492800. Its totient is φ = 684385056.

The previous prime is 1311124429. The next prime is 1311124483. The reversal of 1311124455 is 5544211131.

It is not a de Polignac number, because 1311124455 - 2⁶ = 1311124391 is a prime.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96975 + ... + 109664.

It is an arithmetic number, because the mean of its divisors is an integer number (74390400).

Almost surely, 2^1311124455 is an apocalyptic number.

1311124455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1311124455 is a deficient number, since it is larger than the sum of its proper divisors (1069368345).

1311124455 is a wasteful number, since it uses less digits than its factorization.

1311124455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206700 (or 206694 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1311124455 is about 36209.4525642131. The cubic root of 1311124455 is about 1094.4971607553.

Adding to 1311124455 its reverse (5544211131), we get a palindrome (6855335586).

The spelling of 1311124455 in words is "one billion, three hundred eleven million, one hundred twenty-four thousand, four hundred fifty-five".