1131052431320 has 96 divisors (see below), whose sum is σ = 3134495335680. Its totient is φ = 364978252800.

The previous prime is 1131052431319. The next prime is 1131052431323. The reversal of 1131052431320 is 231342501311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131052431320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131052431323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16939256 + ... + 17005895.

It is an arithmetic number, because the mean of its divisors is an integer number (32650993080).

Almost surely, 2^{1131052431320} is an apocalyptic number.

1131052431320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131052431320 is an abundant number, since it is smaller than the sum of its proper divisors (2003442904360).

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

1131052431320 is a wasteful number, since it uses less digits than its factorization.

1131052431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33945193 (or 33945182 counting only the distinct ones).

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

Adding to 1131052431320 its reverse (231342501311), we get a palindrome (1362394932631).

The spelling of 1131052431320 in words is "one trillion, one hundred thirty-one billion, fifty-two million, four hundred thirty-one thousand, three hundred twenty".