121251326325 has 24 divisors (see below), whose sum is σ = 201214130400. Its totient is φ = 64426964160.

The previous prime is 121251326311. The next prime is 121251326327. The reversal of 121251326325 is 523623152121.

It is not a de Polignac number, because 121251326325 - 2²⁰ = 121250277749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121251326327) 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 in 23 ways as a sum of consecutive naturals, for example, 2984815 + ... + 3025164.

It is an arithmetic number, because the mean of its divisors is an integer number (8383922100).

Almost surely, 2^121251326325 is an apocalyptic number.

121251326325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121251326325 is a deficient number, since it is larger than the sum of its proper divisors (79962804075).

121251326325 is a wasteful number, since it uses less digits than its factorization.

121251326325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010261 (or 6010256 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

Adding to 121251326325 its reverse (523623152121), we get a palindrome (644874478446).

The spelling of 121251326325 in words is "one hundred twenty-one billion, two hundred fifty-one million, three hundred twenty-six thousand, three hundred twenty-five".