1131242331120 has 320 divisors, whose sum is σ = 3872335154688. Its totient is φ = 270906880000.

The previous prime is 1131242331103. The next prime is 1131242331151. The reversal of 1131242331120 is 211332421311.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 122916439 + ... + 122925641.

Almost surely, 2^{1131242331120} is an apocalyptic number.

1131242331120 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 1131242331120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936167577344).

1131242331120 is an abundant number, since it is smaller than the sum of its proper divisors (2741092823568).

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

1131242331120 is a wasteful number, since it uses less digits than its factorization.

1131242331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9792 (or 9786 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1131242331120 its reverse (211332421311), we get a palindrome (1342574752431).

The spelling of 1131242331120 in words is "one trillion, one hundred thirty-one billion, two hundred forty-two million, three hundred thirty-one thousand, one hundred twenty".