20010312032321 has 6 divisors (see below), whose sum is σ = 21667971017430. Its totient is φ = 18471057260448.

The previous prime is 20010312032281. The next prime is 20010312032357. The reversal of 20010312032321 is 12323021301002.

It can be written as a sum of positive squares in 3 ways, for example, as 2007432751921 + 18002879280400 = 1416839^2 + 4242980^2 .

It is not a de Polignac number, because 20010312032321 - 2²⁶ = 20010244923457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010312032293 and 20010312032302.

It is not an unprimeable number, because it can be changed into a prime (20010312022321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59202106436 + ... + 59202106773.

It is an arithmetic number, because the mean of its divisors is an integer number (3611328502905).

Almost surely, 2^{20010312032321} is an apocalyptic number.

It is an amenable number.

20010312032321 is a deficient number, since it is larger than the sum of its proper divisors (1657658985109).

20010312032321 is a wasteful number, since it uses less digits than its factorization.

20010312032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118404213235 (or 118404213222 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20010312032321 its reverse (12323021301002), we get a palindrome (32333333333323).

The spelling of 20010312032321 in words is "twenty trillion, ten billion, three hundred twelve million, thirty-two thousand, three hundred twenty-one".