13331011021 has 8 divisors (see below), whose sum is σ = 14047638080. Its totient is φ = 12615883488.

The previous prime is 13331011009. The next prime is 13331011039. The reversal of 13331011021 is 12011013331.

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 13331011021 - 2²³ = 13322622413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13331010986 and 13331011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331011061) 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, 356601 + ... + 392206.

It is an arithmetic number, because the mean of its divisors is an integer number (1755954760).

Almost surely, 2^13331011021 is an apocalyptic number.

It is an amenable number.

13331011021 is a deficient number, since it is larger than the sum of its proper divisors (716627059).

13331011021 is an equidigital number, since it uses as much as digits as its factorization.

13331011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749763.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 13331011021 its reverse (12011013331), we get a palindrome (25342024352).

The spelling of 13331011021 in words is "thirteen billion, three hundred thirty-one million, eleven thousand, twenty-one".