13311431413021 has 16 divisors (see below), whose sum is σ = 15242331758976. Its totient is φ = 11387855425536.

The previous prime is 13311431412977. The next prime is 13311431413051. The reversal of 13311431413021 is 12031413411331.

It is a cyclic number.

It is not a de Polignac number, because 13311431413021 - 2¹¹ = 13311431410973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311431413051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21083490 + ... + 21705676.

It is an arithmetic number, because the mean of its divisors is an integer number (952645734936).

Almost surely, 2^{13311431413021} is an apocalyptic number.

It is an amenable number.

13311431413021 is a deficient number, since it is larger than the sum of its proper divisors (1930900345955).

13311431413021 is an equidigital number, since it uses as much as digits as its factorization.

13311431413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628068.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 13311431413021 its reverse (12031413411331), we get a palindrome (25342844824352).

The spelling of 13311431413021 in words is "thirteen trillion, three hundred eleven billion, four hundred thirty-one million, four hundred thirteen thousand, twenty-one".