121325345056 has 12 divisors (see below), whose sum is σ = 238859273142. Its totient is φ = 60662672512.

The previous prime is 121325345047. The next prime is 121325345093. The reversal of 121325345056 is 650543523121.

It can be written as a sum of positive squares in only one way, i.e., 118415821456 + 2909523600 = 344116^2 + 53940^2 .

It is an unprimeable number.

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, 1895708485 + ... + 1895708548.

Almost surely, 2^121325345056 is an apocalyptic number.

121325345056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121325345056 is a deficient number, since it is larger than the sum of its proper divisors (117533928086).

121325345056 is an equidigital number, since it uses as much as digits as its factorization.

121325345056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791417043 (or 3791417035 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 121325345056 its reverse (650543523121), we get a palindrome (771868868177).

The spelling of 121325345056 in words is "one hundred twenty-one billion, three hundred twenty-five million, three hundred forty-five thousand, fifty-six".