120023223021257 has 2 divisors, whose sum is σ = 120023223021258. Its totient is φ = 120023223021256.

The previous prime is 120023223021139. The next prime is 120023223021263. The reversal of 120023223021257 is 752120322320021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88736607240121 + 31286615781136 = 9420011^2 + 5593444^2 .

It is a cyclic number.

It is not a de Polignac number, because 120023223021257 - 2²⁰ = 120023221972681 is a prime.

It is not a weakly prime, because it can be changed into another prime (120023223041257) 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, 60011611510628 + 60011611510629.

It is an arithmetic number, because the mean of its divisors is an integer number (60011611510629).

Almost surely, 2^{120023223021257} is an apocalyptic number.

It is an amenable number.

120023223021257 is a deficient number, since it is larger than the sum of its proper divisors (1).

120023223021257 is an equidigital number, since it uses as much as digits as its factorization.

120023223021257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 120023223021257 its reverse (752120322320021), we get a palindrome (872143545341278).

The spelling of 120023223021257 in words is "one hundred twenty trillion, twenty-three billion, two hundred twenty-three million, twenty-one thousand, two hundred fifty-seven".