123243833 has 2 divisors, whose sum is σ = 123243834. Its totient is φ = 123243832.

The previous prime is 123243803. The next prime is 123243839. The reversal of 123243833 is 338342321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108826624 + 14417209 = 10432^2 + 3797^2 .

It is an emirp because it is prime and its reverse (338342321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123243833 - 2¹² = 123239737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123243796 and 123243805.

It is not a weakly prime, because it can be changed into another prime (123243839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61621916 + 61621917.

It is an arithmetic number, because the mean of its divisors is an integer number (61621917).

Almost surely, 2^123243833 is an apocalyptic number.

It is an amenable number.

123243833 is a deficient number, since it is larger than the sum of its proper divisors (1).

123243833 is an equidigital number, since it uses as much as digits as its factorization.

123243833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 123243833 is about 11101.5239044016. The cubic root of 123243833 is about 497.6473918311.

The spelling of 123243833 in words is "one hundred twenty-three million, two hundred forty-three thousand, eight hundred thirty-three".