21042332024403 has 32 divisors (see below), whose sum is σ = 30236825088000. Its totient is φ = 12978514897920.

The previous prime is 21042332024353. The next prime is 21042332024407. The reversal of 21042332024403 is 30442023324012.

It is not a de Polignac number, because 21042332024403 - 2¹⁰ = 21042332023379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21042332024407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1380223 + ... + 6632471.

It is an arithmetic number, because the mean of its divisors is an integer number (944900784000).

Almost surely, 2^{21042332024403} is an apocalyptic number.

21042332024403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21042332024403 is a deficient number, since it is larger than the sum of its proper divisors (9194493063597).

21042332024403 is a wasteful number, since it uses less digits than its factorization.

21042332024403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254179.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 21042332024403 its reverse (30442023324012), we get a palindrome (51484355348415).

The spelling of 21042332024403 in words is "twenty-one trillion, forty-two billion, three hundred thirty-two million, twenty-four thousand, four hundred three".