121250230813 has 2 divisors, whose sum is σ = 121250230814. Its totient is φ = 121250230812.

The previous prime is 121250230793. The next prime is 121250230867. The reversal of 121250230813 is 318032052121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119496045124 + 1754185689 = 345682^2 + 41883^2 .

It is a cyclic number.

It is not a de Polignac number, because 121250230813 - 2²⁵ = 121216676381 is a prime.

It is a super-3 number, since 3×121250230813³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121250230513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60625115406 + 60625115407.

It is an arithmetic number, because the mean of its divisors is an integer number (60625115407).

Almost surely, 2^121250230813 is an apocalyptic number.

It is an amenable number.

121250230813 is a deficient number, since it is larger than the sum of its proper divisors (1).

121250230813 is an equidigital number, since it uses as much as digits as its factorization.

121250230813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 121250230813 its reverse (318032052121), we get a palindrome (439282282934).

The spelling of 121250230813 in words is "one hundred twenty-one billion, two hundred fifty million, two hundred thirty thousand, eight hundred thirteen".