1230023120251 has 2 divisors, whose sum is σ = 1230023120252. Its totient is φ = 1230023120250.

The previous prime is 1230023120201. The next prime is 1230023120273. The reversal of 1230023120251 is 1520213200321.

It is an a-pointer prime, because the next prime (1230023120273) can be obtained adding 1230023120251 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230023120251 - 2¹⁷ = 1230022989179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230023120201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615011560125 + 615011560126.

It is an arithmetic number, because the mean of its divisors is an integer number (615011560126).

Almost surely, 2^{1230023120251} is an apocalyptic number.

1230023120251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230023120251 is an equidigital number, since it uses as much as digits as its factorization.

1230023120251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1230023120251 its reverse (1520213200321), we get a palindrome (2750236320572).

The spelling of 1230023120251 in words is "one trillion, two hundred thirty billion, twenty-three million, one hundred twenty thousand, two hundred fifty-one".