1131314040 has 80 divisors (see below), whose sum is σ = 3802483080. Its totient is φ = 301682880.

The previous prime is 1131314033. The next prime is 1131314081. The reversal of 1131314040 is 404131311.

It is a super-2 number, since 2×1131314040² = 2559742914202243200, which contains 22 as substring.

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 19 ways as a sum of consecutive naturals, for example, 171346 + ... + 177825.

Almost surely, 2^1131314040 is an apocalyptic number.

1131314040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131314040 is an abundant number, since it is smaller than the sum of its proper divisors (2671169040).

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

1131314040 is a wasteful number, since it uses less digits than its factorization.

1131314040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349194 (or 349181 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1131314040 is about 33635.0121153538. The cubic root of 1131314040 is about 1041.9840208375.

Adding to 1131314040 its reverse (404131311), we get a palindrome (1535445351).

The spelling of 1131314040 in words is "one billion, one hundred thirty-one million, three hundred fourteen thousand, forty".