1121313413 has 12 divisors (see below), whose sum is σ = 1244734764. Its totient is φ = 1009272000.

The previous prime is 1121313397. The next prime is 1121313419. The reversal of 1121313413 is 3143131211.

It can be written as a sum of positive squares in 2 ways, for example, as 896523364 + 224790049 = 29942^2 + 14993^2 .

It is not a de Polignac number, because 1121313413 - 2⁴ = 1121313397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121313419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33656 + ... + 58097.

It is an arithmetic number, because the mean of its divisors is an integer number (103727897).

Almost surely, 2^1121313413 is an apocalyptic number.

It is an amenable number.

1121313413 is a deficient number, since it is larger than the sum of its proper divisors (123421351).

1121313413 is a wasteful number, since it uses less digits than its factorization.

1121313413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91876 (or 91865 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1121313413 is about 33486.0181717683. The cubic root of 1121313413 is about 1038.9046075797.

Adding to 1121313413 its reverse (3143131211), we get a palindrome (4264444624).

The spelling of 1121313413 in words is "one billion, one hundred twenty-one million, three hundred thirteen thousand, four hundred thirteen".