20202423953 has 2 divisors, whose sum is σ = 20202423954. Its totient is φ = 20202423952.

The previous prime is 20202423889. The next prime is 20202424001. The reversal of 20202423953 is 35932420202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17353319824 + 2849104129 = 131732^2 + 53377^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202423953 - 2⁶ = 20202423889 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202423253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101211976 + 10101211977.

It is an arithmetic number, because the mean of its divisors is an integer number (10101211977).

Almost surely, 2^20202423953 is an apocalyptic number.

It is an amenable number.

20202423953 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202423953 is an equidigital number, since it uses as much as digits as its factorization.

20202423953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 20202423953 in words is "twenty billion, two hundred two million, four hundred twenty-three thousand, nine hundred fifty-three".