21032331001 has 8 divisors (see below), whose sum is σ = 23171534208. Its totient is φ = 18930990000.

The previous prime is 21032330989. The next prime is 21032331037. The reversal of 21032331001 is 10013323012.

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 21032331001 - 2¹⁹ = 21031806713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032331101) 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, 9464385 + ... + 9466606.

It is an arithmetic number, because the mean of its divisors is an integer number (2896441776).

Almost surely, 2^21032331001 is an apocalyptic number.

It is an amenable number.

21032331001 is a deficient number, since it is larger than the sum of its proper divisors (2139203207).

21032331001 is a wasteful number, since it uses less digits than its factorization.

21032331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18931103.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21032331001 its reverse (10013323012), we get a palindrome (31045654013).

The spelling of 21032331001 in words is "twenty-one billion, thirty-two million, three hundred thirty-one thousand, one".