32312201021 has 4 divisors (see below), whose sum is σ = 34012843200. Its totient is φ = 30611558844.

The previous prime is 32312200979. The next prime is 32312201027. The reversal of 32312201021 is 12010221323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-32312201021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32312201027) 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, 850321061 + ... + 850321098.

It is an arithmetic number, because the mean of its divisors is an integer number (8503210800).

Almost surely, 2^32312201021 is an apocalyptic number.

It is an amenable number.

32312201021 is a deficient number, since it is larger than the sum of its proper divisors (1700642179).

32312201021 is a wasteful number, since it uses less digits than its factorization.

32312201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700642178.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 32312201021 its reverse (12010221323), we get a palindrome (44322422344).

The spelling of 32312201021 in words is "thirty-two billion, three hundred twelve million, two hundred one thousand, twenty-one".