1131011022120 has 128 divisors (see below), whose sum is σ = 4002840944640. Its totient is φ = 250177547520.

The previous prime is 1131011022067. The next prime is 1131011022133. The reversal of 1131011022120 is 212201101311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1131011022120.

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 31 ways as a sum of consecutive naturals, for example, 21690762 + ... + 21742841.

It is an arithmetic number, because the mean of its divisors is an integer number (31272194880).

Almost surely, 2^{1131011022120} is an apocalyptic number.

1131011022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131011022120 is an abundant number, since it is smaller than the sum of its proper divisors (2871829922520).

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

1131011022120 is a wasteful number, since it uses less digits than its factorization.

1131011022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43433655 (or 43433651 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1131011022120 its reverse (212201101311), we get a palindrome (1343212123431).

The spelling of 1131011022120 in words is "one trillion, one hundred thirty-one billion, eleven million, twenty-two thousand, one hundred twenty".