231200210331 has 32 divisors (see below), whose sum is σ = 357212979200. Its totient is φ = 147623627520.

The previous prime is 231200210309. The next prime is 231200210333. The reversal of 231200210331 is 133012002132.

231200210331 is a `hidden beast` number, since 2 + 3 + 120 + 0 + 210 + 331 = 666.

It is not a de Polignac number, because 231200210331 - 2¹⁰ = 231200209307 is a prime.

It is a super-2 number, since 2×231200210331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231200210333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1342651 + ... + 1505028.

It is an arithmetic number, because the mean of its divisors is an integer number (11162905600).

Almost surely, 2^231200210331 is an apocalyptic number.

231200210331 is a deficient number, since it is larger than the sum of its proper divisors (126012768869).

231200210331 is a wasteful number, since it uses less digits than its factorization.

231200210331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847816 (or 2847810 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231200210331 its reverse (133012002132), we get a palindrome (364212212463).

The spelling of 231200210331 in words is "two hundred thirty-one billion, two hundred million, two hundred ten thousand, three hundred thirty-one".