13311322011020 has 48 divisors (see below), whose sum is σ = 30540341024928. Its totient is φ = 4833288284160.

The previous prime is 13311322011011. The next prime is 13311322011089. The reversal of 13311322011020 is 2011022311331.

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 = 13311322010983 and 13311322011001.

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, 44804399 + ... + 45100518.

It is an arithmetic number, because the mean of its divisors is an integer number (636257104686).

Almost surely, 2^{13311322011020} is an apocalyptic number.

13311322011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311322011020 is an abundant number, since it is smaller than the sum of its proper divisors (17229019013908).

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

13311322011020 is a wasteful number, since it uses less digits than its factorization.

13311322011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89905610 (or 89905608 counting only the distinct ones).

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

Adding to 13311322011020 its reverse (2011022311331), we get a palindrome (15322344322351).

The spelling of 13311322011020 in words is "thirteen trillion, three hundred eleven billion, three hundred twenty-two million, eleven thousand, twenty".