1131211841056 has 48 divisors (see below), whose sum is σ = 2513311597440. Its totient is φ = 496456602880.

The previous prime is 1131211841047. The next prime is 1131211841059. The reversal of 1131211841056 is 6501481121311.

It is not an unprimeable number, because it can be changed into a prime (1131211841059) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55397896 + ... + 55418311.

It is an arithmetic number, because the mean of its divisors is an integer number (52360658280).

Almost surely, 2^{1131211841056} is an apocalyptic number.

1131211841056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1131211841056 is an abundant number, since it is smaller than the sum of its proper divisors (1382099756384).

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

1131211841056 is a wasteful number, since it uses less digits than its factorization.

1131211841056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110816257 (or 110816249 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

Adding to 1131211841056 its reverse (6501481121311), we get a palindrome (7632692962367).

The spelling of 1131211841056 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, eight hundred forty-one thousand, fifty-six".