423242004320431 has 4 divisors (see below), whose sum is σ = 423243255658552. Its totient is φ = 423240752982312.

The previous prime is 423242004320383. The next prime is 423242004320489. The reversal of 423242004320431 is 134023400242324.

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

It is a cyclic number.

It is not a de Polignac number, because 423242004320431 - 2²⁷ = 423241870102703 is a prime.

It is a super-2 number, since 2×423242004320431² (a number of 30 digits) contains 22 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 (423242004320131) 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, 625161576 + ... + 625838221.

It is an arithmetic number, because the mean of its divisors is an integer number (105810813914638).

Almost surely, 2^{423242004320431} is an apocalyptic number.

423242004320431 is a deficient number, since it is larger than the sum of its proper divisors (1251338121).

423242004320431 is a wasteful number, since it uses less digits than its factorization.

423242004320431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251338120.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 423242004320431 its reverse (134023400242324), we get a palindrome (557265404562755).

The spelling of 423242004320431 in words is "four hundred twenty-three trillion, two hundred forty-two billion, four million, three hundred twenty thousand, four hundred thirty-one".