1131099801960 has 32 divisors (see below), whose sum is σ = 3393299406240. Its totient is φ = 301626613824.

The previous prime is 1131099801901. The next prime is 1131099801967. The reversal of 1131099801960 is 691089901311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1131099801967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4712915722 + ... + 4712915961.

It is an arithmetic number, because the mean of its divisors is an integer number (106040606445).

Almost surely, 2^{1131099801960} is an apocalyptic number.

1131099801960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131099801960 is an abundant number, since it is smaller than the sum of its proper divisors (2262199604280).

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

1131099801960 is a wasteful number, since it uses less digits than its factorization.

1131099801960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9425831697 (or 9425831693 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 48.

The spelling of 1131099801960 in words is "one trillion, one hundred thirty-one billion, ninety-nine million, eight hundred one thousand, nine hundred sixty".