11331131203120 has 80 divisors (see below), whose sum is σ = 27821784291840. Its totient is φ = 4279915521792.

The previous prime is 11331131203111. The next prime is 11331131203123. The reversal of 11331131203120 is 2130213113311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 11331131203091 and 11331131203100.

It is not an unprimeable number, because it can be changed into a prime (11331131203123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11674552 + ... + 12607831.

It is an arithmetic number, because the mean of its divisors is an integer number (347772303648).

Almost surely, 2^{11331131203120} is an apocalyptic number.

11331131203120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331131203120 is an abundant number, since it is smaller than the sum of its proper divisors (16490653088720).

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

11331131203120 is a wasteful number, since it uses less digits than its factorization.

11331131203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24282722 (or 24282716 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11331131203120 its reverse (2130213113311), we get a palindrome (13461344316431).

The spelling of 11331131203120 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, two hundred three thousand, one hundred twenty".