13313031201021 has 32 divisors (see below), whose sum is σ = 18978520174848. Its totient is φ = 8271661178880.

The previous prime is 13313031201013. The next prime is 13313031201023. The reversal of 13313031201021 is 12010213031331.

It is a happy number.

It is not a de Polignac number, because 13313031201021 - 2³ = 13313031201013 is a prime.

It is a super-2 number, since 2×13313031201021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313031201023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95624341 + ... + 95763461.

It is an arithmetic number, because the mean of its divisors is an integer number (593078755464).

Almost surely, 2^{13313031201021} is an apocalyptic number.

It is an amenable number.

13313031201021 is a deficient number, since it is larger than the sum of its proper divisors (5665488973827).

13313031201021 is a wasteful number, since it uses less digits than its factorization.

13313031201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157461.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 13313031201021 its reverse (12010213031331), we get a palindrome (25323244232352).

The spelling of 13313031201021 in words is "thirteen trillion, three hundred thirteen billion, thirty-one million, two hundred one thousand, twenty-one".