121513027 has 2 divisors, whose sum is σ = 121513028. Its totient is φ = 121513026.

The previous prime is 121513019. The next prime is 121513033. The reversal of 121513027 is 720315121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (720315121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121513027 - 2³ = 121513019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121512989 and 121513007.

It is not a weakly prime, because it can be changed into another prime (121513057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60756513 + 60756514.

It is an arithmetic number, because the mean of its divisors is an integer number (60756514).

Almost surely, 2^121513027 is an apocalyptic number.

121513027 is a deficient number, since it is larger than the sum of its proper divisors (1).

121513027 is an equidigital number, since it uses as much as digits as its factorization.

121513027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 121513027 is about 11023.2947434059. The cubic root of 121513027 is about 495.3067880211.

Adding to 121513027 its reverse (720315121), we get a palindrome (841828148).

The spelling of 121513027 in words is "one hundred twenty-one million, five hundred thirteen thousand, twenty-seven".