121420322325 has 120 divisors (see below), whose sum is σ = 227253434760. Its totient is φ = 64086681600.

The previous prime is 121420322273. The next prime is 121420322329. The reversal of 121420322325 is 523223024121.

121420322325 is a `hidden beast` number, since 1 + 2 + 1 + 420 + 3 + 2 + 232 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 12482699076 + 108937623249 = 111726^2 + 330057^2 .

It is not a de Polignac number, because 121420322325 - 2¹⁰ = 121420321301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121420322329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 150086521 + ... + 150087329.

It is an arithmetic number, because the mean of its divisors is an integer number (1893778623).

Almost surely, 2^121420322325 is an apocalyptic number.

121420322325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121420322325 is a deficient number, since it is larger than the sum of its proper divisors (105833112435).

121420322325 is a wasteful number, since it uses less digits than its factorization.

121420322325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 121420322325 its reverse (523223024121), we get a palindrome (644643346446).

The spelling of 121420322325 in words is "one hundred twenty-one billion, four hundred twenty million, three hundred twenty-two thousand, three hundred twenty-five".