123040433 has 2 divisors, whose sum is σ = 123040434. Its totient is φ = 123040432.

The previous prime is 123040427. The next prime is 123040459. The reversal of 123040433 is 334040321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90402064 + 32638369 = 9508^2 + 5713^2 .

It is a cyclic number.

It is not a de Polignac number, because 123040433 - 2¹⁸ = 122778289 is a prime.

It is a super-3 number, since 3×123040433³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123040403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61520216 + 61520217.

It is an arithmetic number, because the mean of its divisors is an integer number (61520217).

Almost surely, 2^123040433 is an apocalyptic number.

It is an amenable number.

123040433 is a deficient number, since it is larger than the sum of its proper divisors (1).

123040433 is an equidigital number, since it uses as much as digits as its factorization.

123040433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 123040433 is about 11092.3592170467. The cubic root of 123040433 is about 497.3734708486.

Adding to 123040433 its reverse (334040321), we get a palindrome (457080754).

The spelling of 123040433 in words is "one hundred twenty-three million, forty thousand, four hundred thirty-three".