32313212321 has 4 divisors (see below), whose sum is σ = 34798844052. Its totient is φ = 29827580592.

The previous prime is 32313212299. The next prime is 32313212363. The reversal of 32313212321 is 12321231323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12321231323 = 3181 ⋅3873383.

It can be written as a sum of positive squares in 2 ways, for example, as 13118495296 + 19194717025 = 114536^2 + 138545^2 .

It is a cyclic number.

It is not a de Polignac number, because 32313212321 - 2¹⁰ = 32313211297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32313212381) 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, 1242815846 + ... + 1242815871.

It is an arithmetic number, because the mean of its divisors is an integer number (8699711013).

Almost surely, 2^32313212321 is an apocalyptic number.

It is an amenable number.

32313212321 is a deficient number, since it is larger than the sum of its proper divisors (2485631731).

32313212321 is a wasteful number, since it uses less digits than its factorization.

32313212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485631730.

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

Adding to 32313212321 its reverse (12321231323), we get a palindrome (44634443644).

The spelling of 32313212321 in words is "thirty-two billion, three hundred thirteen million, two hundred twelve thousand, three hundred twenty-one".