1131330231120 has 80 divisors (see below), whose sum is σ = 3628059039360. Its totient is φ = 291285023232.

The previous prime is 1131330231103. The next prime is 1131330231133. The reversal of 1131330231120 is 211320331311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81266764 + ... + 81280683.

It is an arithmetic number, because the mean of its divisors is an integer number (45350737992).

Almost surely, 2^{1131330231120} is an apocalyptic number.

1131330231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131330231120 is an abundant number, since it is smaller than the sum of its proper divisors (2496728808240).

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

1131330231120 is a wasteful number, since it uses less digits than its factorization.

1131330231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162547492 (or 162547486 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1131330231120 its reverse (211320331311), we get a palindrome (1342650562431).

The spelling of 1131330231120 in words is "one trillion, one hundred thirty-one billion, three hundred thirty million, two hundred thirty-one thousand, one hundred twenty".