203233312213 has 2 divisors, whose sum is σ = 203233312214. Its totient is φ = 203233312212.

The previous prime is 203233312193. The next prime is 203233312229. The reversal of 203233312213 is 312213332302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190788124849 + 12445187364 = 436793^2 + 111558^2 .

It is a cyclic number.

It is not a de Polignac number, because 203233312213 - 2²⁵ = 203199757781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203233312283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101616656106 + 101616656107.

It is an arithmetic number, because the mean of its divisors is an integer number (101616656107).

Almost surely, 2^203233312213 is an apocalyptic number.

It is an amenable number.

203233312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

203233312213 is an equidigital number, since it uses as much as digits as its factorization.

203233312213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 203233312213 its reverse (312213332302), we get a palindrome (515446644515).

The spelling of 203233312213 in words is "two hundred three billion, two hundred thirty-three million, three hundred twelve thousand, two hundred thirteen".