231212323303 has 16 divisors (see below), whose sum is σ = 252970512480. Its totient is φ = 210046242816.

The previous prime is 231212323273. The next prime is 231212323327. The reversal of 231212323303 is 303323212132.

It is a cyclic number.

It is not a de Polignac number, because 231212323303 - 2²⁹ = 230675452391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231212323393) 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, 286450 + ... + 737887.

It is an arithmetic number, because the mean of its divisors is an integer number (15810657030).

Almost surely, 2^231212323303 is an apocalyptic number.

231212323303 is a deficient number, since it is larger than the sum of its proper divisors (21758189177).

231212323303 is a wasteful number, since it uses less digits than its factorization.

231212323303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024626.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 231212323303 its reverse (303323212132), we get a palindrome (534535535435).

The spelling of 231212323303 in words is "two hundred thirty-one billion, two hundred twelve million, three hundred twenty-three thousand, three hundred three".