403231421204423 has 16 divisors (see below), whose sum is σ = 472077304070400. Its totient is φ = 337195940222400.

The previous prime is 403231421204383. The next prime is 403231421204429. The reversal of 403231421204423 is 324402124132304.

It is a happy number.

It is not a de Polignac number, because 403231421204423 - 2¹⁰ = 403231421203399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403231421204429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96208628 + ... + 100312326.

It is an arithmetic number, because the mean of its divisors is an integer number (29504831504400).

Almost surely, 2^{403231421204423} is an apocalyptic number.

403231421204423 is a deficient number, since it is larger than the sum of its proper divisors (68845882865977).

403231421204423 is a wasteful number, since it uses less digits than its factorization.

403231421204423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446118.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 403231421204423 its reverse (324402124132304), we get a palindrome (727633545336727).

The spelling of 403231421204423 in words is "four hundred three trillion, two hundred thirty-one billion, four hundred twenty-one million, two hundred four thousand, four hundred twenty-three".