32001312031309 has 4 divisors (see below), whose sum is σ = 33104805549660. Its totient is φ = 30897818512960.

The previous prime is 32001312031303. The next prime is 32001312031319. The reversal of 32001312031309 is 90313021310023.

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 23082595669225 + 8918716362084 = 4804435^2 + 2986422^2 .

It is a cyclic number.

It is not a de Polignac number, because 32001312031309 - 2²⁵ = 32001278476877 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 (32001312031303) 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, 551746759132 + ... + 551746759189.

It is an arithmetic number, because the mean of its divisors is an integer number (8276201387415).

Almost surely, 2^{32001312031309} is an apocalyptic number.

It is an amenable number.

32001312031309 is a deficient number, since it is larger than the sum of its proper divisors (1103493518351).

32001312031309 is a wasteful number, since it uses less digits than its factorization.

32001312031309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103493518350.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 32001312031309 in words is "thirty-two trillion, one billion, three hundred twelve million, thirty-one thousand, three hundred nine".