32123312021 has 2 divisors, whose sum is σ = 32123312022. Its totient is φ = 32123312020.

The previous prime is 32123312017. The next prime is 32123312041. The reversal of 32123312021 is 12021332123.

It is an a-pointer prime, because the next prime (32123312041) can be obtained adding 32123312021 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26053188100 + 6070123921 = 161410^2 + 77911^2 .

It is a cyclic number.

It is not a de Polignac number, because 32123312021 - 2² = 32123312017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32123311984 and 32123312002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32123312041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16061656010 + 16061656011.

It is an arithmetic number, because the mean of its divisors is an integer number (16061656011).

Almost surely, 2^32123312021 is an apocalyptic number.

It is an amenable number.

32123312021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32123312021 is an equidigital number, since it uses as much as digits as its factorization.

32123312021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 32123312021 its reverse (12021332123), we get a palindrome (44144644144).

The spelling of 32123312021 in words is "thirty-two billion, one hundred twenty-three million, three hundred twelve thousand, twenty-one".