1421244323213 has 24 divisors (see below), whose sum is σ = 1707472977504. Its totient is φ = 1174851707040.

The previous prime is 1421244323197. The next prime is 1421244323227. The reversal of 1421244323213 is 3123234421241.

It is a happy number.

It is not a de Polignac number, because 1421244323213 - 2⁴ = 1421244323197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421244323213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421244323243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6637331 + ... + 6848112.

It is an arithmetic number, because the mean of its divisors is an integer number (71144707396).

Almost surely, 2^{1421244323213} is an apocalyptic number.

1421244323213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1421244323213 is a deficient number, since it is larger than the sum of its proper divisors (286228654291).

1421244323213 is a wasteful number, since it uses less digits than its factorization.

1421244323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13485545 (or 13485534 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

Adding to 1421244323213 its reverse (3123234421241), we get a palindrome (4544478744454).

The spelling of 1421244323213 in words is "one trillion, four hundred twenty-one billion, two hundred forty-four million, three hundred twenty-three thousand, two hundred thirteen".