123355001233 has 2 divisors, whose sum is σ = 123355001234. Its totient is φ = 123355001232.

The previous prime is 123355001221. The next prime is 123355001239. The reversal of 123355001233 is 332100553321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92298693249 + 31056307984 = 303807^2 + 176228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123355001233 is a prime.

It is not a weakly prime, because it can be changed into another prime (123355001239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61677500616 + 61677500617.

It is an arithmetic number, because the mean of its divisors is an integer number (61677500617).

Almost surely, 2^123355001233 is an apocalyptic number.

It is an amenable number.

123355001233 is a deficient number, since it is larger than the sum of its proper divisors (1).

123355001233 is an equidigital number, since it uses as much as digits as its factorization.

123355001233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 123355001233 its reverse (332100553321), we get a palindrome (455455554554).

The spelling of 123355001233 in words is "one hundred twenty-three billion, three hundred fifty-five million, one thousand, two hundred thirty-three".