203233031213 has 16 divisors (see below), whose sum is σ = 226550257920. Its totient is φ = 181181546496.

The previous prime is 203233031203. The next prime is 203233031263. The reversal of 203233031213 is 312130332302.

It is a cyclic number.

It is not a de Polignac number, because 203233031213 - 2³² = 198938063917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203233031203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2086445 + ... + 2181677.

It is an arithmetic number, because the mean of its divisors is an integer number (14159391120).

Almost surely, 2^203233031213 is an apocalyptic number.

It is an amenable number.

203233031213 is a deficient number, since it is larger than the sum of its proper divisors (23317226707).

203233031213 is a wasteful number, since it uses less digits than its factorization.

203233031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101876.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 203233031213 its reverse (312130332302), we get a palindrome (515363363515).

The spelling of 203233031213 in words is "two hundred three billion, two hundred thirty-three million, thirty-one thousand, two hundred thirteen".