1113120331 has 4 divisors (see below), whose sum is σ = 1113417592. Its totient is φ = 1112823072.

The previous prime is 1113120277. The next prime is 1113120383. The reversal of 1113120331 is 1330213111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1330213111 = 359 ⋅3705329.

It is a cyclic number.

It is not a de Polignac number, because 1113120331 - 2²⁵ = 1079565899 is a prime.

It is a super-2 number, since 2×1113120331² = 2478073742571099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113120391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142941 + ... + 150526.

It is an arithmetic number, because the mean of its divisors is an integer number (278354398).

Almost surely, 2^1113120331 is an apocalyptic number.

1113120331 is a deficient number, since it is larger than the sum of its proper divisors (297261).

1113120331 is an equidigital number, since it uses as much as digits as its factorization.

1113120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297260.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1113120331 is about 33363.4580192162. The cubic root of 1113120331 is about 1036.3681040503.

Adding to 1113120331 its reverse (1330213111), we get a palindrome (2443333442).

The spelling of 1113120331 in words is "one billion, one hundred thirteen million, one hundred twenty thousand, three hundred thirty-one".