123233210251 has 2 divisors, whose sum is σ = 123233210252. Its totient is φ = 123233210250.

The previous prime is 123233210197. The next prime is 123233210297. The reversal of 123233210251 is 152012332321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123233210251 is a prime.

It is not a weakly prime, because it can be changed into another prime (123233510251) 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, 61616605125 + 61616605126.

It is an arithmetic number, because the mean of its divisors is an integer number (61616605126).

Almost surely, 2^123233210251 is an apocalyptic number.

123233210251 is a deficient number, since it is larger than the sum of its proper divisors (1).

123233210251 is an equidigital number, since it uses as much as digits as its factorization.

123233210251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 123233210251 its reverse (152012332321), we get a palindrome (275245542572).

The spelling of 123233210251 in words is "one hundred twenty-three billion, two hundred thirty-three million, two hundred ten thousand, two hundred fifty-one".