11331131311021 has 8 divisors (see below), whose sum is σ = 12045600770400. Its totient is φ = 10628471264400.

The previous prime is 11331131311007. The next prime is 11331131311057. The reversal of 11331131311021 is 12011313113311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11331131311021 - 2²⁷ = 11330997093293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331131310983 and 11331131311001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131311081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2952351211 + ... + 2952355048.

It is an arithmetic number, because the mean of its divisors is an integer number (1505700096300).

Almost surely, 2^{11331131311021} is an apocalyptic number.

It is an amenable number.

11331131311021 is a deficient number, since it is larger than the sum of its proper divisors (714469459379).

11331131311021 is a wasteful number, since it uses less digits than its factorization.

11331131311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904706379.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 11331131311021 its reverse (12011313113311), we get a palindrome (23342444424332).

The spelling of 11331131311021 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred eleven thousand, twenty-one".