203211223231 has 8 divisors (see below), whose sum is σ = 203554641584. Its totient is φ = 202867891200.

The previous prime is 203211223207. The next prime is 203211223247. The reversal of 203211223231 is 132322112302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203211223231 - 2¹⁷ = 203211092159 is a prime.

It is a super-2 number, since 2×203211223231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203211223261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6156985 + ... + 6189901.

It is an arithmetic number, because the mean of its divisors is an integer number (25444330198).

Almost surely, 2^203211223231 is an apocalyptic number.

203211223231 is a deficient number, since it is larger than the sum of its proper divisors (343418353).

203211223231 is an equidigital number, since it uses as much as digits as its factorization.

203211223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43161.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203211223231 its reverse (132322112302), we get a palindrome (335533335533).

The spelling of 203211223231 in words is "two hundred three billion, two hundred eleven million, two hundred twenty-three thousand, two hundred thirty-one".