31224305423 has 8 divisors (see below), whose sum is σ = 32303362800. Its totient is φ = 30145405248.

The previous prime is 31224305393. The next prime is 31224305509. The reversal of 31224305423 is 32450342213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31224305423 - 2¹⁰ = 31224304399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31224305923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482363 + ... + 543251.

It is an arithmetic number, because the mean of its divisors is an integer number (4037920350).

Almost surely, 2^31224305423 is an apocalyptic number.

31224305423 is a deficient number, since it is larger than the sum of its proper divisors (1079057377).

31224305423 is a wasteful number, since it uses less digits than its factorization.

31224305423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78601.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 31224305423 its reverse (32450342213), we get a palindrome (63674647636).

The spelling of 31224305423 in words is "thirty-one billion, two hundred twenty-four million, three hundred five thousand, four hundred twenty-three".