20242105451 has 2 divisors, whose sum is σ = 20242105452. Its totient is φ = 20242105450.

The previous prime is 20242105427. The next prime is 20242105453. The reversal of 20242105451 is 15450124202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20242105451 - 2²⁶ = 20174996587 is a prime.

Together with 20242105453, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20242105451.

It is not a weakly prime, because it can be changed into another prime (20242105453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121052725 + 10121052726.

It is an arithmetic number, because the mean of its divisors is an integer number (10121052726).

Almost surely, 2^20242105451 is an apocalyptic number.

20242105451 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242105451 is an equidigital number, since it uses as much as digits as its factorization.

20242105451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 20242105451 its reverse (15450124202), we get a palindrome (35692229653).

The spelling of 20242105451 in words is "twenty billion, two hundred forty-two million, one hundred five thousand, four hundred fifty-one".