1223030231251 has 2 divisors, whose sum is σ = 1223030231252. Its totient is φ = 1223030231250.

The previous prime is 1223030231237. The next prime is 1223030231323. The reversal of 1223030231251 is 1521320303221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223030231251 - 2⁷ = 1223030231123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223030231201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611515115625 + 611515115626.

It is an arithmetic number, because the mean of its divisors is an integer number (611515115626).

Almost surely, 2^{1223030231251} is an apocalyptic number.

1223030231251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223030231251 is an equidigital number, since it uses as much as digits as its factorization.

1223030231251 is an evil number, because the sum of its binary digits is even.

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

Adding to 1223030231251 its reverse (1521320303221), we get a palindrome (2744350534472).

The spelling of 1223030231251 in words is "one trillion, two hundred twenty-three billion, thirty million, two hundred thirty-one thousand, two hundred fifty-one".