201322020131 has 4 divisors (see below), whose sum is σ = 201322978272. Its totient is φ = 201321061992.

The previous prime is 201322020113. The next prime is 201322020169. The reversal of 201322020131 is 131020223102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 131020223102 = 2 ⋅65510111551.

It is a cyclic number.

It is not a de Polignac number, because 201322020131 - 2¹⁴ = 201322003747 is a prime.

It is a super-2 number, since 2×201322020131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201322020191) 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, 12296 + ... + 634661.

It is an arithmetic number, because the mean of its divisors is an integer number (50330744568).

Almost surely, 2^201322020131 is an apocalyptic number.

201322020131 is a deficient number, since it is larger than the sum of its proper divisors (958141).

201322020131 is an equidigital number, since it uses as much as digits as its factorization.

201322020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958140.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201322020131 its reverse (131020223102), we get a palindrome (332342243233).

The spelling of 201322020131 in words is "two hundred one billion, three hundred twenty-two million, twenty thousand, one hundred thirty-one".