121331021213027 has 2 divisors, whose sum is σ = 121331021213028. Its totient is φ = 121331021213026.

The previous prime is 121331021212993. The next prime is 121331021213047. The reversal of 121331021213027 is 720312120133121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121331021213027 - 2⁶ = 121331021212963 is a prime.

It is not a weakly prime, because it can be changed into another prime (121331021213047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60665510606513 + 60665510606514.

It is an arithmetic number, because the mean of its divisors is an integer number (60665510606514).

Almost surely, 2^{121331021213027} is an apocalyptic number.

121331021213027 is a deficient number, since it is larger than the sum of its proper divisors (1).

121331021213027 is an equidigital number, since it uses as much as digits as its factorization.

121331021213027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 121331021213027 its reverse (720312120133121), we get a palindrome (841643141346148).

The spelling of 121331021213027 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, twenty-one million, two hundred thirteen thousand, twenty-seven".