121364145601 has 4 divisors (see below), whose sum is σ = 121367742804. Its totient is φ = 121360548400.

The previous prime is 121364145599. The next prime is 121364145649. The reversal of 121364145601 is 106541463121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45199185201 + 76164960400 = 212601^2 + 275980^2 .

It is a cyclic number.

It is not a de Polignac number, because 121364145601 - 2¹ = 121364145599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121364145691) 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 3 ways as a sum of consecutive naturals, for example, 1747510 + ... + 1815631.

It is an arithmetic number, because the mean of its divisors is an integer number (30341935701).

Almost surely, 2^121364145601 is an apocalyptic number.

It is an amenable number.

121364145601 is a deficient number, since it is larger than the sum of its proper divisors (3597203).

121364145601 is an equidigital number, since it uses as much as digits as its factorization.

121364145601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597202.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 121364145601 in words is "one hundred twenty-one billion, three hundred sixty-four million, one hundred forty-five thousand, six hundred one".