1423340133421 has 4 divisors (see below), whose sum is σ = 1485224487072. Its totient is φ = 1361455779772.

The previous prime is 1423340133401. The next prime is 1423340133461. The reversal of 1423340133421 is 1243310433241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1423340133421 - 2¹⁷ = 1423340002349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423340133401) 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, 30942176791 + ... + 30942176836.

It is an arithmetic number, because the mean of its divisors is an integer number (371306121768).

Almost surely, 2^{1423340133421} is an apocalyptic number.

It is an amenable number.

1423340133421 is a deficient number, since it is larger than the sum of its proper divisors (61884353651).

1423340133421 is an equidigital number, since it uses as much as digits as its factorization.

1423340133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61884353650.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1423340133421 its reverse (1243310433241), we get a palindrome (2666650566662).

The spelling of 1423340133421 in words is "one trillion, four hundred twenty-three billion, three hundred forty million, one hundred thirty-three thousand, four hundred twenty-one".