1135044120 has 64 divisors (see below), whose sum is σ = 3891582720. Its totient is φ = 259438464.

The previous prime is 1135044073. The next prime is 1135044133. The reversal of 1135044120 is 214405311.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 674782 + ... + 676461.

It is an arithmetic number, because the mean of its divisors is an integer number (60805980).

Almost surely, 2^1135044120 is an apocalyptic number.

1135044120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135044120 is an abundant number, since it is smaller than the sum of its proper divisors (2756538600).

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

1135044120 is a wasteful number, since it uses less digits than its factorization.

1135044120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351264 (or 1351260 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1135044120 is about 33690.4158478342. The cubic root of 1135044120 is about 1043.1279472226.

Adding to 1135044120 its reverse (214405311), we get a palindrome (1349449431).

The spelling of 1135044120 in words is "one billion, one hundred thirty-five million, forty-four thousand, one hundred twenty".