20403332121983 has 8 divisors (see below), whose sum is σ = 20583653737248. Its totient is φ = 20223702721024.

The previous prime is 20403332121971. The next prime is 20403332122021. The reversal of 20403332121983 is 38912123330402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20403332121983 - 2⁸ = 20403332121727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20403332121983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20403332121883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172994366 + ... + 173112267.

It is an arithmetic number, because the mean of its divisors is an integer number (2572956717156).

Almost surely, 2^{20403332121983} is an apocalyptic number.

20403332121983 is a deficient number, since it is larger than the sum of its proper divisors (180321615265).

20403332121983 is a wasteful number, since it uses less digits than its factorization.

20403332121983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346107153.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 20403332121983 in words is "twenty trillion, four hundred three billion, three hundred thirty-two million, one hundred twenty-one thousand, nine hundred eighty-three".