20142223522451 has 2 divisors, whose sum is σ = 20142223522452. Its totient is φ = 20142223522450.

The previous prime is 20142223522441. The next prime is 20142223522501. The reversal of 20142223522451 is 15422532224102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20142223522451 is a prime.

It is not a weakly prime, because it can be changed into another prime (20142223522441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071111761225 + 10071111761226.

It is an arithmetic number, because the mean of its divisors is an integer number (10071111761226).

Almost surely, 2^{20142223522451} is an apocalyptic number.

20142223522451 is a deficient number, since it is larger than the sum of its proper divisors (1).

20142223522451 is an equidigital number, since it uses as much as digits as its factorization.

20142223522451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 20142223522451 its reverse (15422532224102), we get a palindrome (35564755746553).

The spelling of 20142223522451 in words is "twenty trillion, one hundred forty-two billion, two hundred twenty-three million, five hundred twenty-two thousand, four hundred fifty-one".