1423403221313 has 4 divisors (see below), whose sum is σ = 1426690527108. Its totient is φ = 1420115915520.

The previous prime is 1423403221307. The next prime is 1423403221337. The reversal of 1423403221313 is 3131223043241.

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 948720804529 + 474682416784 = 974023^2 + 688972^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423403221313 - 2⁴ = 1423403221297 is a prime.

It is a super-3 number, since 3×1423403221313³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423403221813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643652248 + ... + 1643653113.

It is an arithmetic number, because the mean of its divisors is an integer number (356672631777).

Almost surely, 2^{1423403221313} is an apocalyptic number.

It is an amenable number.

1423403221313 is a deficient number, since it is larger than the sum of its proper divisors (3287305795).

1423403221313 is an equidigital number, since it uses as much as digits as its factorization.

1423403221313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287305794.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1423403221313 its reverse (3131223043241), we get a palindrome (4554626264554).

The spelling of 1423403221313 in words is "one trillion, four hundred twenty-three billion, four hundred three million, two hundred twenty-one thousand, three hundred thirteen".