20201342331 has 4 divisors (see below), whose sum is σ = 26935123112. Its totient is φ = 13467561552.

The previous prime is 20201342321. The next prime is 20201342339. The reversal of 20201342331 is 13324310202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20201342331 - 2¹¹ = 20201340283 is a prime.

It is a super-2 number, since 2×20201342331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201342298 and 20201342307.

It is not an unprimeable number, because it can be changed into a prime (20201342339) 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, 3366890386 + ... + 3366890391.

It is an arithmetic number, because the mean of its divisors is an integer number (6733780778).

Almost surely, 2^20201342331 is an apocalyptic number.

20201342331 is a deficient number, since it is larger than the sum of its proper divisors (6733780781).

20201342331 is an equidigital number, since it uses as much as digits as its factorization.

20201342331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733780780.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20201342331 its reverse (13324310202), we get a palindrome (33525652533).

The spelling of 20201342331 in words is "twenty billion, two hundred one million, three hundred forty-two thousand, three hundred thirty-one".