203312322253 has 2 divisors, whose sum is σ = 203312322254. Its totient is φ = 203312322252.

The previous prime is 203312322251. The next prime is 203312322293. The reversal of 203312322253 is 352223213302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179033073129 + 24279249124 = 423123^2 + 155818^2 .

It is a cyclic number.

It is not a de Polignac number, because 203312322253 - 2¹ = 203312322251 is a prime.

Together with 203312322251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203312322251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101656161126 + 101656161127.

It is an arithmetic number, because the mean of its divisors is an integer number (101656161127).

Almost surely, 2^203312322253 is an apocalyptic number.

It is an amenable number.

203312322253 is a deficient number, since it is larger than the sum of its proper divisors (1).

203312322253 is an equidigital number, since it uses as much as digits as its factorization.

203312322253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 203312322253 its reverse (352223213302), we get a palindrome (555535535555).

The spelling of 203312322253 in words is "two hundred three billion, three hundred twelve million, three hundred twenty-two thousand, two hundred fifty-three".