203013212231 has 2 divisors, whose sum is σ = 203013212232. Its totient is φ = 203013212230.

The previous prime is 203013212221. The next prime is 203013212239. The reversal of 203013212231 is 132212310302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203013212231 - 2⁶ = 203013212167 is a prime.

It is a super-2 number, since 2×203013212231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203013212239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101506606115 + 101506606116.

It is an arithmetic number, because the mean of its divisors is an integer number (101506606116).

Almost surely, 2^203013212231 is an apocalyptic number.

203013212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

203013212231 is an equidigital number, since it uses as much as digits as its factorization.

203013212231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203013212231 its reverse (132212310302), we get a palindrome (335225522533).

The spelling of 203013212231 in words is "two hundred three billion, thirteen million, two hundred twelve thousand, two hundred thirty-one".