121230023017 has 2 divisors, whose sum is σ = 121230023018. Its totient is φ = 121230023016.

The previous prime is 121230023003. The next prime is 121230023029. The reversal of 121230023017 is 710320032121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121162471056 + 67551961 = 348084^2 + 8219^2 .

It is a cyclic number.

It is not a de Polignac number, because 121230023017 - 2¹¹ = 121230020969 is a prime.

It is not a weakly prime, because it can be changed into another prime (121230023077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615011508 + 60615011509.

It is an arithmetic number, because the mean of its divisors is an integer number (60615011509).

Almost surely, 2^121230023017 is an apocalyptic number.

It is an amenable number.

121230023017 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230023017 is an equidigital number, since it uses as much as digits as its factorization.

121230023017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 121230023017 its reverse (710320032121), we get a palindrome (831550055138).

The spelling of 121230023017 in words is "one hundred twenty-one billion, two hundred thirty million, twenty-three thousand, seventeen".