21032331201 has 144 divisors (see below), whose sum is σ = 38236738176. Its totient is φ = 11067743232.

The previous prime is 21032331191. The next prime is 21032331217. The reversal of 21032331201 is 10213323012.

It is not a de Polignac number, because 21032331201 - 2⁹ = 21032330689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21032331101) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 125942020 + ... + 125942186.

It is an arithmetic number, because the mean of its divisors is an integer number (265532904).

Almost surely, 2^21032331201 is an apocalyptic number.

21032331201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21032331201 is a deficient number, since it is larger than the sum of its proper divisors (17204406975).

21032331201 is a wasteful number, since it uses less digits than its factorization.

21032331201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21032331201 its reverse (10213323012), we get a palindrome (31245654213).

The spelling of 21032331201 in words is "twenty-one billion, thirty-two million, three hundred thirty-one thousand, two hundred one".