32123310021 has 24 divisors (see below), whose sum is σ = 52309772480. Its totient is φ = 19468670760.

The previous prime is 32123309989. The next prime is 32123310049. The reversal of 32123310021 is 12001332123.

It is not a de Polignac number, because 32123310021 - 2⁵ = 32123309989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32123309976 and 32123310003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32123312021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4913065 + ... + 4919598.

Almost surely, 2^32123310021 is an apocalyptic number.

It is an amenable number.

32123310021 is a deficient number, since it is larger than the sum of its proper divisors (20186462459).

32123310021 is a wasteful number, since it uses less digits than its factorization.

32123310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9832694 (or 9832677 counting only the distinct ones).

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

Adding to 32123310021 its reverse (12001332123), we get a palindrome (44124642144).

The spelling of 32123310021 in words is "thirty-two billion, one hundred twenty-three million, three hundred ten thousand, twenty-one".