20022303251 has 2 divisors, whose sum is σ = 20022303252. Its totient is φ = 20022303250.

The previous prime is 20022303193. The next prime is 20022303253. The reversal of 20022303251 is 15230322002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20022303251 - 2⁶ = 20022303187 is a prime.

Together with 20022303253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20022303253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011151625 + 10011151626.

It is an arithmetic number, because the mean of its divisors is an integer number (10011151626).

Almost surely, 2^20022303251 is an apocalyptic number.

20022303251 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022303251 is an equidigital number, since it uses as much as digits as its factorization.

20022303251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 20022303251 its reverse (15230322002), we get a palindrome (35252625253).

The spelling of 20022303251 in words is "twenty billion, twenty-two million, three hundred three thousand, two hundred fifty-one".