21332204031 has 8 divisors (see below), whose sum is σ = 28719084160. Its totient is φ = 14083396632.

The previous prime is 21332204017. The next prime is 21332204053. The reversal of 21332204031 is 13040223312.

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

It is not a de Polignac number, because 21332204031 - 2⁵ = 21332203999 is a prime.

It is a super-3 number, since 3×21332204031³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21332203989 and 21332204007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332204431) 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, 34517821 + ... + 34518438.

It is an arithmetic number, because the mean of its divisors is an integer number (3589885520).

Almost surely, 2^21332204031 is an apocalyptic number.

21332204031 is a deficient number, since it is larger than the sum of its proper divisors (7386880129).

21332204031 is a wasteful number, since it uses less digits than its factorization.

21332204031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69036365.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21332204031 its reverse (13040223312), we get a palindrome (34372427343).

The spelling of 21332204031 in words is "twenty-one billion, three hundred thirty-two million, two hundred four thousand, thirty-one".