203230012273 has 2 divisors, whose sum is σ = 203230012274. Its totient is φ = 203230012272.

The previous prime is 203230012199. The next prime is 203230012291. The reversal of 203230012273 is 372210032302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199945805409 + 3284206864 = 447153^2 + 57308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203230012273 is a prime.

It is not a weakly prime, because it can be changed into another prime (203230015273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101615006136 + 101615006137.

It is an arithmetic number, because the mean of its divisors is an integer number (101615006137).

Almost surely, 2^203230012273 is an apocalyptic number.

It is an amenable number.

203230012273 is a deficient number, since it is larger than the sum of its proper divisors (1).

203230012273 is an equidigital number, since it uses as much as digits as its factorization.

203230012273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

Adding to 203230012273 its reverse (372210032302), we get a palindrome (575440044575).

The spelling of 203230012273 in words is "two hundred three billion, two hundred thirty million, twelve thousand, two hundred seventy-three".