203122344251 has 2 divisors, whose sum is σ = 203122344252. Its totient is φ = 203122344250.

The previous prime is 203122344211. The next prime is 203122344277. The reversal of 203122344251 is 152443221302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203122344251 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (203122344211) 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, 101561172125 + 101561172126.

It is an arithmetic number, because the mean of its divisors is an integer number (101561172126).

Almost surely, 2^203122344251 is an apocalyptic number.

203122344251 is a deficient number, since it is larger than the sum of its proper divisors (1).

203122344251 is an equidigital number, since it uses as much as digits as its factorization.

203122344251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 203122344251 its reverse (152443221302), we get a palindrome (355565565553).

The spelling of 203122344251 in words is "two hundred three billion, one hundred twenty-two million, three hundred forty-four thousand, two hundred fifty-one".