1131100331240 has 64 divisors (see below), whose sum is σ = 2779503845760. Its totient is φ = 410840075520.

The previous prime is 1131100331159. The next prime is 1131100331261. The reversal of 1131100331240 is 421330011311.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1079732 + ... + 1851491.

It is an arithmetic number, because the mean of its divisors is an integer number (43429747590).

Almost surely, 2^{1131100331240} is an apocalyptic number.

1131100331240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131100331240 is an abundant number, since it is smaller than the sum of its proper divisors (1648403514520).

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

1131100331240 is a wasteful number, since it uses less digits than its factorization.

1131100331240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932122 (or 2932118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131100331240 its reverse (421330011311), we get a palindrome (1552430342551).

The spelling of 1131100331240 in words is "one trillion, one hundred thirty-one billion, one hundred million, three hundred thirty-one thousand, two hundred forty".