20001322311 has 8 divisors (see below), whose sum is σ = 26671482240. Its totient is φ = 13332688632.

The previous prime is 20001322241. The next prime is 20001322331. The reversal of 20001322311 is 11322310002.

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

It is not a de Polignac number, because 20001322311 - 2¹⁵ = 20001289543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001322331) 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, 350625 + ... + 403658.

It is an arithmetic number, because the mean of its divisors is an integer number (3333935280).

Almost surely, 2^20001322311 is an apocalyptic number.

20001322311 is a deficient number, since it is larger than the sum of its proper divisors (6670159929).

20001322311 is an equidigital number, since it uses as much as digits as its factorization.

20001322311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763125.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20001322311 its reverse (11322310002), we get a palindrome (31323632313).

The spelling of 20001322311 in words is "twenty billion, one million, three hundred twenty-two thousand, three hundred eleven".