1113120540 has 72 divisors (see below), whose sum is σ = 3858822240. Its totient is φ = 254427264.

The previous prime is 1113120527. The next prime is 1113120551. The reversal of 1113120540 is 450213111.

1113120540 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 120 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440455 + ... + 442974.

Almost surely, 2^1113120540 is an apocalyptic number.

1113120540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113120540 is an abundant number, since it is smaller than the sum of its proper divisors (2745701700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1113120540 is a wasteful number, since it uses less digits than its factorization.

1113120540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883451 (or 883446 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1113120540 is about 33363.4611513854. The cubic root of 1113120540 is about 1036.3681689133.

Adding to 1113120540 its reverse (450213111), we get a palindrome (1563333651).

The spelling of 1113120540 in words is "one billion, one hundred thirteen million, one hundred twenty thousand, five hundred forty".