20242244431 has 2 divisors, whose sum is σ = 20242244432. Its totient is φ = 20242244430.

The previous prime is 20242244423. The next prime is 20242244443. The reversal of 20242244431 is 13444224202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20242244431 - 2³ = 20242244423 is a prime.

It is a super-2 number, since 2×20242244431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20242244431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20242248431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121122215 + 10121122216.

It is an arithmetic number, because the mean of its divisors is an integer number (10121122216).

Almost surely, 2^20242244431 is an apocalyptic number.

20242244431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242244431 is an equidigital number, since it uses as much as digits as its factorization.

20242244431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20242244431 its reverse (13444224202), we get a palindrome (33686468633).

The spelling of 20242244431 in words is "twenty billion, two hundred forty-two million, two hundred forty-four thousand, four hundred thirty-one".