1213113124 has 12 divisors (see below), whose sum is σ = 2152029964. Its totient is φ = 598247424.

The previous prime is 1213113113. The next prime is 1213113133. The reversal of 1213113124 is 4213113121.

It can be written as a sum of positive squares in 2 ways, for example, as 324000000 + 889113124 = 18000^2 + 29818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2076957 + ... + 2077540.

Almost surely, 2^1213113124 is an apocalyptic number.

It is an amenable number.

1213113124 is a deficient number, since it is larger than the sum of its proper divisors (938916840).

1213113124 is a wasteful number, since it uses less digits than its factorization.

1213113124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154574 (or 4154572 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 1213113124 is about 34829.7735278310. The cubic root of 1213113124 is about 1066.5153251863.

Adding to 1213113124 its reverse (4213113121), we get a palindrome (5426226245).

The spelling of 1213113124 in words is "one billion, two hundred thirteen million, one hundred thirteen thousand, one hundred twenty-four".