121403200333423 has 16 divisors (see below), whose sum is σ = 126600214401760. Its totient is φ = 116320317100416.

The previous prime is 121403200333417. The next prime is 121403200333463. The reversal of 121403200333423 is 324333002304121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121403200333423 - 2²⁹ = 121402663462511 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 (121403200333403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91681440 + ... + 92996197.

It is an arithmetic number, because the mean of its divisors is an integer number (7912513400110).

Almost surely, 2^{121403200333423} is an apocalyptic number.

121403200333423 is a deficient number, since it is larger than the sum of its proper divisors (5197014068337).

121403200333423 is a wasteful number, since it uses less digits than its factorization.

121403200333423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184677946.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 121403200333423 its reverse (324333002304121), we get a palindrome (445736202637544).

The spelling of 121403200333423 in words is "one hundred twenty-one trillion, four hundred three billion, two hundred million, three hundred thirty-three thousand, four hundred twenty-three".