121330023121 has 2 divisors, whose sum is σ = 121330023122. Its totient is φ = 121330023120.

The previous prime is 121330023109. The next prime is 121330023127. The reversal of 121330023121 is 121320033121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106080490000 + 15249533121 = 325700^2 + 123489^2 .

It is a cyclic number.

It is not a de Polignac number, because 121330023121 - 2¹¹ = 121330021073 is a prime.

It is not a weakly prime, because it can be changed into another prime (121330023127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60665011560 + 60665011561.

It is an arithmetic number, because the mean of its divisors is an integer number (60665011561).

Almost surely, 2^121330023121 is an apocalyptic number.

It is an amenable number.

121330023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121330023121 is an equidigital number, since it uses as much as digits as its factorization.

121330023121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121330023121 its reverse (121320033121), we get a palindrome (242650056242).

The spelling of 121330023121 in words is "one hundred twenty-one billion, three hundred thirty million, twenty-three thousand, one hundred twenty-one".