1121124045 has 16 divisors (see below), whose sum is σ = 1802908800. Its totient is φ = 594896064.

The previous prime is 1121124023. The next prime is 1121124061. The reversal of 1121124045 is 5404211211.

It is not a de Polignac number, because 1121124045 - 2⁶ = 1121123981 is a prime.

It is a congruent number.

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, 186745 + ... + 192654.

It is an arithmetic number, because the mean of its divisors is an integer number (112681800).

Almost surely, 2^1121124045 is an apocalyptic number.

1121124045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121124045 is a deficient number, since it is larger than the sum of its proper divisors (681784755).

1121124045 is a wasteful number, since it uses less digits than its factorization.

1121124045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379604.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1121124045 is about 33483.1904841818. The cubic root of 1121124045 is about 1038.8461207013.

Adding to 1121124045 its reverse (5404211211), we get a palindrome (6525335256).

The spelling of 1121124045 in words is "one billion, one hundred twenty-one million, one hundred twenty-four thousand, forty-five".