20201240322311 has 4 divisors (see below), whose sum is σ = 20251617480624. Its totient is φ = 20150863164000.

The previous prime is 20201240322281. The next prime is 20201240322337. The reversal of 20201240322311 is 11322304210202.

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

It is a cyclic number.

It is not a de Polignac number, because 20201240322311 - 2³⁸ = 19926362415367 is a prime.

It is a super-2 number, since 2×20201240322311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201240322911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25188578555 + ... + 25188579356.

It is an arithmetic number, because the mean of its divisors is an integer number (5062904370156).

Almost surely, 2^{20201240322311} is an apocalyptic number.

20201240322311 is a deficient number, since it is larger than the sum of its proper divisors (50377158313).

20201240322311 is an equidigital number, since it uses as much as digits as its factorization.

20201240322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50377158312.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20201240322311 its reverse (11322304210202), we get a palindrome (31523544532513).

The spelling of 20201240322311 in words is "twenty trillion, two hundred one billion, two hundred forty million, three hundred twenty-two thousand, three hundred eleven".