21234201033403 has 8 divisors (see below), whose sum is σ = 21983060939328. Its totient is φ = 20497718977344.

The previous prime is 21234201033389. The next prime is 21234201033407. The reversal of 21234201033403 is 30433010243212.

It is a happy number.

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 21234201033403 - 2⁵ = 21234201033371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21234201033407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3094458976 + ... + 3094465837.

It is an arithmetic number, because the mean of its divisors is an integer number (2747882617416).

Almost surely, 2^{21234201033403} is an apocalyptic number.

21234201033403 is a deficient number, since it is larger than the sum of its proper divisors (748859905925).

21234201033403 is an equidigital number, since it uses as much as digits as its factorization.

21234201033403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188924933.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21234201033403 its reverse (30433010243212), we get a palindrome (51667211276615).

The spelling of 21234201033403 in words is "twenty-one trillion, two hundred thirty-four billion, two hundred one million, thirty-three thousand, four hundred three".