20321203001 has 8 divisors (see below), whose sum is σ = 22228022784. Its totient is φ = 18424289520.

The previous prime is 20321202989. The next prime is 20321203043. The reversal of 20321203001 is 10030212302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20321203001 - 2¹⁰ = 20321201977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20321203051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2472281 + ... + 2480486.

It is an arithmetic number, because the mean of its divisors is an integer number (2778502848).

Almost surely, 2^20321203001 is an apocalyptic number.

It is an amenable number.

20321203001 is a deficient number, since it is larger than the sum of its proper divisors (1906819783).

20321203001 is a wasteful number, since it uses less digits than its factorization.

20321203001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953151.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20321203001 its reverse (10030212302), we get a palindrome (30351415303).

It can be divided in two parts, 20321 and 203001, that added together give a palindrome (223322).

The spelling of 20321203001 in words is "twenty billion, three hundred twenty-one million, two hundred three thousand, one".