42323002431421 has 4 divisors (see below), whose sum is σ = 44550528875200. Its totient is φ = 40095475987644.

The previous prime is 42323002431403. The next prime is 42323002431487. The reversal of 42323002431421 is 12413420032324.

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 not a de Polignac number, because 42323002431421 - 2⁹ = 42323002430909 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 (42323002431121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113763221861 + ... + 1113763221898.

It is an arithmetic number, because the mean of its divisors is an integer number (11137632218800).

Almost surely, 2^{42323002431421} is an apocalyptic number.

It is an amenable number.

42323002431421 is a deficient number, since it is larger than the sum of its proper divisors (2227526443779).

42323002431421 is a wasteful number, since it uses less digits than its factorization.

42323002431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227526443778.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 42323002431421 its reverse (12413420032324), we get a palindrome (54736422463745).

The spelling of 42323002431421 in words is "forty-two trillion, three hundred twenty-three billion, two million, four hundred thirty-one thousand, four hundred twenty-one".