231203020231 has 16 divisors (see below), whose sum is σ = 243542597760. Its totient is φ = 219187594080.

The previous prime is 231203020219. The next prime is 231203020283. The reversal of 231203020231 is 132020302132.

It is a cyclic number.

It is not a de Polignac number, because 231203020231 - 2¹¹ = 231203018183 is a prime.

It is a super-2 number, since 2×231203020231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231203020199 and 231203020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231203020291) 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, 97696 + ... + 686986.

It is an arithmetic number, because the mean of its divisors is an integer number (15221412360).

Almost surely, 2^231203020231 is an apocalyptic number.

231203020231 is a deficient number, since it is larger than the sum of its proper divisors (12339577529).

231203020231 is a wasteful number, since it uses less digits than its factorization.

231203020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589566.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231203020231 its reverse (132020302132), we get a palindrome (363223322363).

The spelling of 231203020231 in words is "two hundred thirty-one billion, two hundred three million, twenty thousand, two hundred thirty-one".