32312213321 has 4 divisors (see below), whose sum is σ = 32355702912. Its totient is φ = 32268723732.

The previous prime is 32312213287. The next prime is 32312213341. The reversal of 32312213321 is 12331221323.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12331221323 = 31 ⋅397781333.

It is a cyclic number.

It is not a de Polignac number, because 32312213321 - 2¹⁴ = 32312196937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32312213341) 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, 21743681 + ... + 21745166.

It is an arithmetic number, because the mean of its divisors is an integer number (8088925728).

Almost surely, 2^32312213321 is an apocalyptic number.

It is an amenable number.

32312213321 is a deficient number, since it is larger than the sum of its proper divisors (43489591).

32312213321 is an equidigital number, since it uses as much as digits as its factorization.

32312213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43489590.

The product of its digits is 1296, while the sum is 23.

Adding to 32312213321 its reverse (12331221323), we get a palindrome (44643434644).

The spelling of 32312213321 in words is "thirty-two billion, three hundred twelve million, two hundred thirteen thousand, three hundred twenty-one".