203201021293 has 2 divisors, whose sum is σ = 203201021294. Its totient is φ = 203201021292.

The previous prime is 203201021273. The next prime is 203201021329. The reversal of 203201021293 is 392120102302.

Together with next prime (203201021329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202970072484 + 230948809 = 450522^2 + 15197^2 .

It is a cyclic number.

It is not a de Polignac number, because 203201021293 - 2²¹ = 203198924141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203201021203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101600510646 + 101600510647.

It is an arithmetic number, because the mean of its divisors is an integer number (101600510647).

Almost surely, 2^203201021293 is an apocalyptic number.

It is an amenable number.

203201021293 is a deficient number, since it is larger than the sum of its proper divisors (1).

203201021293 is an equidigital number, since it uses as much as digits as its factorization.

203201021293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 203201021293 its reverse (392120102302), we get a palindrome (595321123595).

The spelling of 203201021293 in words is "two hundred three billion, two hundred one million, twenty-one thousand, two hundred ninety-three".