11331131331020 has 96 divisors (see below), whose sum is σ = 24412752000000. Its totient is φ = 4415749512704.

The previous prime is 11331131330951. The next prime is 11331131331029. The reversal of 11331131331020 is 2013313113311.

It is not an unprimeable number, because it can be changed into a prime (11331131331029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1511015231 + ... + 1511022729.

It is an arithmetic number, because the mean of its divisors is an integer number (254299500000).

Almost surely, 2^{11331131331020} is an apocalyptic number.

11331131331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331131331020 is an abundant number, since it is smaller than the sum of its proper divisors (13081620668980).

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

11331131331020 is a wasteful number, since it uses less digits than its factorization.

11331131331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14687 (or 14685 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 11331131331020 its reverse (2013313113311), we get a palindrome (13344444444331).

The spelling of 11331131331020 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred thirty-one thousand, twenty".