121245455027 has 2 divisors, whose sum is σ = 121245455028. Its totient is φ = 121245455026.

The previous prime is 121245455017. The next prime is 121245455039. The reversal of 121245455027 is 720554542121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121245455027 - 2⁶ = 121245454963 is a prime.

It is not a weakly prime, because it can be changed into another prime (121245455017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60622727513 + 60622727514.

It is an arithmetic number, because the mean of its divisors is an integer number (60622727514).

Almost surely, 2^121245455027 is an apocalyptic number.

121245455027 is a deficient number, since it is larger than the sum of its proper divisors (1).

121245455027 is an equidigital number, since it uses as much as digits as its factorization.

121245455027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112000, while the sum is 38.

Adding to 121245455027 its reverse (720554542121), we get a palindrome (841799997148).

The spelling of 121245455027 in words is "one hundred twenty-one billion, two hundred forty-five million, four hundred fifty-five thousand, twenty-seven".