11331131313021 has 32 divisors (see below), whose sum is σ = 16335618001920. Its totient is φ = 6945084556800.

The previous prime is 11331131313001. The next prime is 11331131313031. The reversal of 11331131313021 is 12031313113311.

It is not a de Polignac number, because 11331131313021 - 2²¹ = 11331129215869 is a prime.

It is a super-2 number, since 2×11331131313021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11331131312982 and 11331131313000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131313001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9150691 + ... + 10314911.

It is an arithmetic number, because the mean of its divisors is an integer number (510488062560).

Almost surely, 2^{11331131313021} is an apocalyptic number.

It is an amenable number.

11331131313021 is a deficient number, since it is larger than the sum of its proper divisors (5004486688899).

11331131313021 is a wasteful number, since it uses less digits than its factorization.

11331131313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165237.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 11331131313021 its reverse (12031313113311), we get a palindrome (23362444426332).

The spelling of 11331131313021 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred thirteen thousand, twenty-one".