203122244387 has 2 divisors, whose sum is σ = 203122244388. Its totient is φ = 203122244386.

The previous prime is 203122244383. The next prime is 203122244443. The reversal of 203122244387 is 783442221302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203122244387 - 2² = 203122244383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203122244387.

It is not a weakly prime, because it can be changed into another prime (203122244383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101561122193 + 101561122194.

It is an arithmetic number, because the mean of its divisors is an integer number (101561122194).

Almost surely, 2^203122244387 is an apocalyptic number.

203122244387 is a deficient number, since it is larger than the sum of its proper divisors (1).

203122244387 is an equidigital number, since it uses as much as digits as its factorization.

203122244387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 38.

Adding to 203122244387 its reverse (783442221302), we get a palindrome (986564465689).

The spelling of 203122244387 in words is "two hundred three billion, one hundred twenty-two million, two hundred forty-four thousand, three hundred eighty-seven".