1131113040 has 80 divisors (see below), whose sum is σ = 3540571008. Its totient is φ = 298695168.

The previous prime is 1131113033. The next prime is 1131113059. The reversal of 1131113040 is 403111311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1842 + ... + 47598.

Almost surely, 2^1131113040 is an apocalyptic number.

1131113040 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 1131113040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1770285504).

1131113040 is an abundant number, since it is smaller than the sum of its proper divisors (2409457968).

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

1131113040 is a wasteful number, since it uses less digits than its factorization.

1131113040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45876 (or 45870 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131113040 is about 33632.0240247298. The cubic root of 1131113040 is about 1041.9223075891.

Adding to 1131113040 its reverse (403111311), we get a palindrome (1534224351).

The spelling of 1131113040 in words is "one billion, one hundred thirty-one million, one hundred thirteen thousand, forty".