1131105423320 has 128 divisors (see below), whose sum is σ = 2664596736000. Its totient is φ = 431602007040.

The previous prime is 1131105423311. The next prime is 1131105423401. The reversal of 1131105423320 is 233245011311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131105423320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273277811 + ... + 273281949.

It is an arithmetic number, because the mean of its divisors is an integer number (20817162000).

Almost surely, 2^{1131105423320} is an apocalyptic number.

1131105423320 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 1131105423320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332298368000).

1131105423320 is an abundant number, since it is smaller than the sum of its proper divisors (1533491312680).

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

1131105423320 is a wasteful number, since it uses less digits than its factorization.

1131105423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7273 (or 7269 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 1131105423320 in words is "one trillion, one hundred thirty-one billion, one hundred five million, four hundred twenty-three thousand, three hundred twenty".