20203122253 has 2 divisors, whose sum is σ = 20203122254. Its totient is φ = 20203122252.

The previous prime is 20203122241. The next prime is 20203122301. The reversal of 20203122253 is 35222130202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14928441124 + 5274681129 = 122182^2 + 72627^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203122253 - 2¹⁷ = 20202991181 is a prime.

It is a super-2 number, since 2×20203122253² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203125253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101561126 + 10101561127.

It is an arithmetic number, because the mean of its divisors is an integer number (10101561127).

Almost surely, 2^20203122253 is an apocalyptic number.

It is an amenable number.

20203122253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203122253 is an equidigital number, since it uses as much as digits as its factorization.

20203122253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20203122253 its reverse (35222130202), we get a palindrome (55425252455).

The spelling of 20203122253 in words is "twenty billion, two hundred three million, one hundred twenty-two thousand, two hundred fifty-three".