20242442111 has 2 divisors, whose sum is σ = 20242442112. Its totient is φ = 20242442110.

The previous prime is 20242442083. The next prime is 20242442123. The reversal of 20242442111 is 11124424202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20242442111 - 2¹⁴ = 20242425727 is a prime.

It is a super-2 number, since 2×20242442111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20242442411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121221055 + 10121221056.

It is an arithmetic number, because the mean of its divisors is an integer number (10121221056).

Almost surely, 2^20242442111 is an apocalyptic number.

20242442111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242442111 is an equidigital number, since it uses as much as digits as its factorization.

20242442111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 20242442111 its reverse (11124424202), we get a palindrome (31366866313).

The spelling of 20242442111 in words is "twenty billion, two hundred forty-two million, four hundred forty-two thousand, one hundred eleven".