1131015340 has 192 divisors, whose sum is σ = 3129477120. Its totient is φ = 333527040.

The previous prime is 1131015331. The next prime is 1131015367. The reversal of 1131015340 is 435101311.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1715931 + ... + 1716589.

It is an arithmetic number, because the mean of its divisors is an integer number (16299360).

Almost surely, 2^1131015340 is an apocalyptic number.

1131015340 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 1131015340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564738560).

1131015340 is an abundant number, since it is smaller than the sum of its proper divisors (1998461780).

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

1131015340 is a wasteful number, since it uses less digits than its factorization.

1131015340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1131015340 is about 33630.5715086735. The cubic root of 1131015340 is about 1041.8923080115.

Adding to 1131015340 its reverse (435101311), we get a palindrome (1566116651).

The spelling of 1131015340 in words is "one billion, one hundred thirty-one million, fifteen thousand, three hundred forty".