203023211231 has 8 divisors (see below), whose sum is σ = 206955996624. Its totient is φ = 199094209600.

The previous prime is 203023211227. The next prime is 203023211269. The reversal of 203023211231 is 132112320302.

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 203023211231 - 2² = 203023211227 is a prime.

It is a super-2 number, since 2×203023211231² (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 (203023211201) 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, 837470 + ... + 1052331.

It is an arithmetic number, because the mean of its divisors is an integer number (25869499578).

Almost surely, 2^203023211231 is an apocalyptic number.

203023211231 is a deficient number, since it is larger than the sum of its proper divisors (3932785393).

203023211231 is a wasteful number, since it uses less digits than its factorization.

203023211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891881.

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

Adding to 203023211231 its reverse (132112320302), we get a palindrome (335135531533).

The spelling of 203023211231 in words is "two hundred three billion, twenty-three million, two hundred eleven thousand, two hundred thirty-one".