121220051412423 has 16 divisors (see below), whose sum is σ = 172286992908800. Its totient is φ = 75590918133120.

The previous prime is 121220051412289. The next prime is 121220051412487. The reversal of 121220051412423 is 324214150022121.

It is not a de Polignac number, because 121220051412423 - 2¹⁰ = 121220051411399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220051411423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13459916818 + ... + 13459925823.

It is an arithmetic number, because the mean of its divisors is an integer number (10767937056800).

Almost surely, 2^{121220051412423} is an apocalyptic number.

121220051412423 is a deficient number, since it is larger than the sum of its proper divisors (51066941496377).

121220051412423 is a wasteful number, since it uses less digits than its factorization.

121220051412423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26919842742.

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 121220051412423 in words is "one hundred twenty-one trillion, two hundred twenty billion, fifty-one million, four hundred twelve thousand, four hundred twenty-three".