32001312321 has 24 divisors (see below), whose sum is σ = 51789189504. Its totient is φ = 18870550560.

The previous prime is 32001312311. The next prime is 32001312331. The reversal of 32001312321 is 12321310023.

32001312321 is a `hidden beast` number, since 32 + 0 + 0 + 1 + 312 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (32001312311) and next prime (32001312331).

It is not a de Polignac number, because 32001312321 - 2¹¹ = 32001310273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32001312294 and 32001312303.

It is not an unprimeable number, because it can be changed into a prime (32001312311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4364521 + ... + 4371846.

It is an arithmetic number, because the mean of its divisors is an integer number (2157882896).

Almost surely, 2^32001312321 is an apocalyptic number.

It is an amenable number.

32001312321 is a deficient number, since it is larger than the sum of its proper divisors (19787877183).

32001312321 is a wasteful number, since it uses less digits than its factorization.

32001312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8736421 (or 8736418 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 32001312321 its reverse (12321310023), we get a palindrome (44322622344).

The spelling of 32001312321 in words is "thirty-two billion, one million, three hundred twelve thousand, three hundred twenty-one".