20542253023 has 2 divisors, whose sum is σ = 20542253024. Its totient is φ = 20542253022.

The previous prime is 20542252981. The next prime is 20542253041. The reversal of 20542253023 is 32035224502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20542253023 - 2³³ = 11952318431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20542252982 and 20542253000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20542263023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10271126511 + 10271126512.

It is an arithmetic number, because the mean of its divisors is an integer number (10271126512).

Almost surely, 2^20542253023 is an apocalyptic number.

20542253023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20542253023 is an equidigital number, since it uses as much as digits as its factorization.

20542253023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 20542253023 its reverse (32035224502), we get a palindrome (52577477525).

The spelling of 20542253023 in words is "twenty billion, five hundred forty-two million, two hundred fifty-three thousand, twenty-three".