123403274633 has 2 divisors, whose sum is σ = 123403274634. Its totient is φ = 123403274632.

The previous prime is 123403274623. The next prime is 123403274639. The reversal of 123403274633 is 336472304321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119475996409 + 3927278224 = 345653^2 + 62668^2 .

It is a cyclic number.

It is not a de Polignac number, because 123403274633 - 2¹⁴ = 123403258249 is a prime.

It is not a weakly prime, because it can be changed into another prime (123403274639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61701637316 + 61701637317.

It is an arithmetic number, because the mean of its divisors is an integer number (61701637317).

Almost surely, 2^123403274633 is an apocalyptic number.

It is an amenable number.

123403274633 is a deficient number, since it is larger than the sum of its proper divisors (1).

123403274633 is an equidigital number, since it uses as much as digits as its factorization.

123403274633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 38.

Adding to 123403274633 its reverse (336472304321), we get a palindrome (459875578954).

The spelling of 123403274633 in words is "one hundred twenty-three billion, four hundred three million, two hundred seventy-four thousand, six hundred thirty-three".