21331231130032 has 10 divisors (see below), whose sum is σ = 41329260314468. Its totient is φ = 10665615565008.

The previous prime is 21331231129961. The next prime is 21331231130159. The reversal of 21331231130032 is 23003113213312.

It is a junction number, because it is equal to n+sod(n) for n = 21331231129979 and 21331231130006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666600972798 + ... + 666600972829.

Almost surely, 2^{21331231130032} is an apocalyptic number.

It is an amenable number.

21331231130032 is a deficient number, since it is larger than the sum of its proper divisors (19998029184436).

21331231130032 is a wasteful number, since it uses less digits than its factorization.

21331231130032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333201945635 (or 1333201945629 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21331231130032 its reverse (23003113213312), we get a palindrome (44334344343344).

The spelling of 21331231130032 in words is "twenty-one trillion, three hundred thirty-one billion, two hundred thirty-one million, one hundred thirty thousand, thirty-two".