224323021431 has 64 divisors (see below), whose sum is σ = 347999500800. Its totient is φ = 142668864000.

The previous prime is 224323021427. The next prime is 224323021451. The reversal of 224323021431 is 134120323422.

224323021431 is a `hidden beast` number, since 224 + 3 + 2 + 3 + 0 + 2 + 1 + 431 = 666.

It is not a de Polignac number, because 224323021431 - 2² = 224323021427 is a prime.

It is a super-2 number, since 2×224323021431² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 224323021395 and 224323021404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224323021411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23630596 + ... + 23640086.

It is an arithmetic number, because the mean of its divisors is an integer number (5437492200).

Almost surely, 2^224323021431 is an apocalyptic number.

224323021431 is a deficient number, since it is larger than the sum of its proper divisors (123676479369).

224323021431 is a wasteful number, since it uses less digits than its factorization.

224323021431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9997 (or 9991 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 224323021431 its reverse (134120323422), we get a palindrome (358443344853).

The spelling of 224323021431 in words is "two hundred twenty-four billion, three hundred twenty-three million, twenty-one thousand, four hundred thirty-one".