2231143221413 has 4 divisors (see below), whose sum is σ = 2231770479180. Its totient is φ = 2230515963648.

The previous prime is 2231143221409. The next prime is 2231143221443. The reversal of 2231143221413 is 3141223411322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1165885976644 + 1065257244769 = 1079762^2 + 1032113^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231143221413 - 2² = 2231143221409 is a prime.

It is a super-3 number, since 3×2231143221413³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231143221403) 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 3 ways as a sum of consecutive naturals, for example, 313623548 + ... + 313630661.

It is an arithmetic number, because the mean of its divisors is an integer number (557942619795).

Almost surely, 2^{2231143221413} is an apocalyptic number.

It is an amenable number.

2231143221413 is a deficient number, since it is larger than the sum of its proper divisors (627257767).

2231143221413 is an equidigital number, since it uses as much as digits as its factorization.

2231143221413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627257766.

The product of its digits is 6912, while the sum is 29.

Adding to 2231143221413 its reverse (3141223411322), we get a palindrome (5372366632735).

The spelling of 2231143221413 in words is "two trillion, two hundred thirty-one billion, one hundred forty-three million, two hundred twenty-one thousand, four hundred thirteen".