231323331303 has 8 divisors (see below), whose sum is σ = 342701231600. Its totient is φ = 154215554184.

The previous prime is 231323331263. The next prime is 231323331331. The reversal of 231323331303 is 303133323132.

231323331303 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 23 + 331 + 303 = 666.

It is not a de Polignac number, because 231323331303 - 2²⁵ = 231289776871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8567530789 = 231323331303 / (2 + 3 + 1 + 3 + 2 + 3 + 3 + 3 + 1 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323335303) 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, 4283765368 + ... + 4283765421.

It is an arithmetic number, because the mean of its divisors is an integer number (42837653950).

Almost surely, 2^231323331303 is an apocalyptic number.

231323331303 is a deficient number, since it is larger than the sum of its proper divisors (111377900297).

231323331303 is an equidigital number, since it uses as much as digits as its factorization.

231323331303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8567530798 (or 8567530792 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 27.

Adding to 231323331303 its reverse (303133323132), we get a palindrome (534456654435).

The spelling of 231323331303 in words is "two hundred thirty-one billion, three hundred twenty-three million, three hundred thirty-one thousand, three hundred three".