20224304431 has 2 divisors, whose sum is σ = 20224304432. Its totient is φ = 20224304430.

The previous prime is 20224304369. The next prime is 20224304447. The reversal of 20224304431 is 13440342202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20224304431 - 2³³ = 11634369839 is a prime.

It is a super-2 number, since 2×20224304431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20224304396 and 20224304405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20224704431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112152215 + 10112152216.

It is an arithmetic number, because the mean of its divisors is an integer number (10112152216).

Almost surely, 2^20224304431 is an apocalyptic number.

20224304431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224304431 is an equidigital number, since it uses as much as digits as its factorization.

20224304431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20224304431 its reverse (13440342202), we get a palindrome (33664646633).

The spelling of 20224304431 in words is "twenty billion, two hundred twenty-four million, three hundred four thousand, four hundred thirty-one".