1115231040 has 672 divisors, whose sum is σ = 4929859584. Its totient is φ = 224686080.

The previous prime is 1115231027. The next prime is 1115231053. The reversal of 1115231040 is 401325111.

It is an interprime number because it is at equal distance from previous prime (1115231027) and next prime (1115231053).

It is a tau number, because it is divible by the number of its divisors (672).

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10422667 + ... + 10422773.

Almost surely, 2^1115231040 is an apocalyptic number.

1115231040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2464929792).

1115231040 is an abundant number, since it is smaller than the sum of its proper divisors (3814628544).

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

1115231040 is a wasteful number, since it uses less digits than its factorization.

1115231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 182 counting only the distinct ones).

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

The square root of 1115231040 is about 33395.0750860063. The cubic root of 1115231040 is about 1037.0227473516.

Adding to 1115231040 its reverse (401325111), we get a palindrome (1516556151).

The spelling of 1115231040 in words is "one billion, one hundred fifteen million, two hundred thirty-one thousand, forty".