11331211131120 has 80 divisors (see below), whose sum is σ = 35185990622112. Its totient is φ = 3016560721920.

The previous prime is 11331211131073. The next prime is 11331211131139. The reversal of 11331211131120 is 2113111213311.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39666601 + ... + 39951240.

Almost surely, 2^{11331211131120} is an apocalyptic number.

11331211131120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331211131120 is an abundant number, since it is smaller than the sum of its proper divisors (23854779490992).

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

11331211131120 is a wasteful number, since it uses less digits than its factorization.

11331211131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79618450 (or 79618444 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 11331211131120 its reverse (2113111213311), we get a palindrome (13444322344431).

The spelling of 11331211131120 in words is "eleven trillion, three hundred thirty-one billion, two hundred eleven million, one hundred thirty-one thousand, one hundred twenty".