1113421145 has 16 divisors (see below), whose sum is σ = 1426626432. Its totient is φ = 832191360.

The previous prime is 1113421139. The next prime is 1113421159. The reversal of 1113421145 is 5411243111.

It is not a de Polignac number, because 1113421145 - 2⁶ = 1113421081 is a prime.

It is a super-2 number, since 2×1113421145² = 2479413292266222050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113421145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107636 + ... + 117525.

It is an arithmetic number, because the mean of its divisors is an integer number (89164152).

Almost surely, 2^1113421145 is an apocalyptic number.

It is an amenable number.

1113421145 is a deficient number, since it is larger than the sum of its proper divisors (313205287).

1113421145 is a wasteful number, since it uses less digits than its factorization.

1113421145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225232.

The product of its digits is 480, while the sum is 23.

The square root of 1113421145 is about 33367.9658504980. The cubic root of 1113421145 is about 1036.4614530343.

Adding to 1113421145 its reverse (5411243111), we get a palindrome (6524664256).

The spelling of 1113421145 in words is "one billion, one hundred thirteen million, four hundred twenty-one thousand, one hundred forty-five".