121232547589 has 2 divisors, whose sum is σ = 121232547590. Its totient is φ = 121232547588.

The previous prime is 121232547551. The next prime is 121232547647. The reversal of 121232547589 is 985745232121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115220871364 + 6011676225 = 339442^2 + 77535^2 .

It is a cyclic number.

It is not a de Polignac number, because 121232547589 - 2⁹ = 121232547077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121232541589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616273794 + 60616273795.

It is an arithmetic number, because the mean of its divisors is an integer number (60616273795).

Almost surely, 2^121232547589 is an apocalyptic number.

It is an amenable number.

121232547589 is a deficient number, since it is larger than the sum of its proper divisors (1).

121232547589 is an equidigital number, since it uses as much as digits as its factorization.

121232547589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 49.

The spelling of 121232547589 in words is "one hundred twenty-one billion, two hundred thirty-two million, five hundred forty-seven thousand, five hundred eighty-nine".