1131324023420 has 12 divisors (see below), whose sum is σ = 2375780449224. Its totient is φ = 452529609360.

The previous prime is 1131324023399. The next prime is 1131324023471. The reversal of 1131324023420 is 243204231311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131324023420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28283100566 + ... + 28283100605.

It is an arithmetic number, because the mean of its divisors is an integer number (197981704102).

Almost surely, 2^{1131324023420} is an apocalyptic number.

1131324023420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131324023420 is an abundant number, since it is smaller than the sum of its proper divisors (1244456425804).

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

1131324023420 is a wasteful number, since it uses less digits than its factorization.

1131324023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56566201180 (or 56566201178 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1131324023420 its reverse (243204231311), we get a palindrome (1374528254731).

The spelling of 1131324023420 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-four million, twenty-three thousand, four hundred twenty".