231220320283 has 2 divisors, whose sum is σ = 231220320284. Its totient is φ = 231220320282.

The previous prime is 231220320281. The next prime is 231220320367. The reversal of 231220320283 is 382023022132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231220320283 - 2¹ = 231220320281 is a prime.

Together with 231220320281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231220320281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115610160141 + 115610160142.

It is an arithmetic number, because the mean of its divisors is an integer number (115610160142).

Almost surely, 2^231220320283 is an apocalyptic number.

231220320283 is a deficient number, since it is larger than the sum of its proper divisors (1).

231220320283 is an equidigital number, since it uses as much as digits as its factorization.

231220320283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 231220320283 in words is "two hundred thirty-one billion, two hundred twenty million, three hundred twenty thousand, two hundred eighty-three".