11031132120320 has 144 divisors (see below), whose sum is σ = 28477442243712. Its totient is φ = 4069899509760.

The previous prime is 11031132120301. The next prime is 11031132120331. The reversal of 11031132120320 is 2302123113011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11031132120292 and 11031132120301.

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, 21427535 + ... + 21936305.

Almost surely, 2^{11031132120320} is an apocalyptic number.

11031132120320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11031132120320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14238721121856).

11031132120320 is an abundant number, since it is smaller than the sum of its proper divisors (17446310123392).

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

11031132120320 is a wasteful number, since it uses less digits than its factorization.

11031132120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510108 (or 510094 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11031132120320 its reverse (2302123113011), we get a palindrome (13333255233331).

The spelling of 11031132120320 in words is "eleven trillion, thirty-one billion, one hundred thirty-two million, one hundred twenty thousand, three hundred twenty".