201031202023321 has 4 divisors (see below), whose sum is σ = 201032150822272. Its totient is φ = 201030253224372.

The previous prime is 201031202023319. The next prime is 201031202023361. The reversal of 201031202023321 is 123320202130102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201031202023321 - 2¹ = 201031202023319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201031202023292 and 201031202023301.

It is not an unprimeable number, because it can be changed into a prime (201031202023361) 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, 474081585 + ... + 474505438.

It is an arithmetic number, because the mean of its divisors is an integer number (50258037705568).

Almost surely, 2^{201031202023321} is an apocalyptic number.

It is an amenable number.

201031202023321 is a deficient number, since it is larger than the sum of its proper divisors (948798951).

201031202023321 is an equidigital number, since it uses as much as digits as its factorization.

201031202023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948798950.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 201031202023321 its reverse (123320202130102), we get a palindrome (324351404153423).

The spelling of 201031202023321 in words is "two hundred one trillion, thirty-one billion, two hundred two million, twenty-three thousand, three hundred twenty-one".