231301123 has 2 divisors, whose sum is σ = 231301124. Its totient is φ = 231301122.

The previous prime is 231301027. The next prime is 231301127. The reversal of 231301123 is 321103132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231301123 is a prime.

It is a super-2 number, since 2×231301123² = 107000419002122258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231301097 and 231301106.

It is not a weakly prime, because it can be changed into another prime (231301127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115650561 + 115650562.

It is an arithmetic number, because the mean of its divisors is an integer number (115650562).

Almost surely, 2^231301123 is an apocalyptic number.

231301123 is a deficient number, since it is larger than the sum of its proper divisors (1).

231301123 is an equidigital number, since it uses as much as digits as its factorization.

231301123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 231301123 is about 15208.5871467405. The cubic root of 231301123 is about 613.8457412208.

Adding to 231301123 its reverse (321103132), we get a palindrome (552404255).

The spelling of 231301123 in words is "two hundred thirty-one million, three hundred one thousand, one hundred twenty-three".