32103313021 has 4 divisors (see below), whose sum is σ = 34572798652. Its totient is φ = 29633827392.

The previous prime is 32103313013. The next prime is 32103313051. The reversal of 32103313021 is 12031330123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17850296025 + 14253016996 = 133605^2 + 119386^2 .

It is not a de Polignac number, because 32103313021 - 2³ = 32103313013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32103313021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32103313001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1234742796 + ... + 1234742821.

It is an arithmetic number, because the mean of its divisors is an integer number (8643199663).

Almost surely, 2^32103313021 is an apocalyptic number.

It is an amenable number.

32103313021 is a deficient number, since it is larger than the sum of its proper divisors (2469485631).

32103313021 is a wasteful number, since it uses less digits than its factorization.

32103313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469485630.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 32103313021 its reverse (12031330123), we get a palindrome (44134643144).

The spelling of 32103313021 in words is "thirty-two billion, one hundred three million, three hundred thirteen thousand, twenty-one".