121325232493 has 2 divisors, whose sum is σ = 121325232494. Its totient is φ = 121325232492.

The previous prime is 121325232491. The next prime is 121325232499. The reversal of 121325232493 is 394232523121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118637535844 + 2687696649 = 344438^2 + 51843^2 .

It is a cyclic number.

It is not a de Polignac number, because 121325232493 - 2¹ = 121325232491 is a prime.

Together with 121325232491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121325232491) 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, 60662616246 + 60662616247.

It is an arithmetic number, because the mean of its divisors is an integer number (60662616247).

Almost surely, 2^121325232493 is an apocalyptic number.

It is an amenable number.

121325232493 is a deficient number, since it is larger than the sum of its proper divisors (1).

121325232493 is an equidigital number, since it uses as much as digits as its factorization.

121325232493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The spelling of 121325232493 in words is "one hundred twenty-one billion, three hundred twenty-five million, two hundred thirty-two thousand, four hundred ninety-three".