20101330311 has 4 divisors (see below), whose sum is σ = 26801773752. Its totient is φ = 13400886872.

The previous prime is 20101330303. The next prime is 20101330393. The reversal of 20101330311 is 11303310102.

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 20101330311 - 2³ = 20101330303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101330211) 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, 3350221716 + ... + 3350221721.

It is an arithmetic number, because the mean of its divisors is an integer number (6700443438).

Almost surely, 2^20101330311 is an apocalyptic number.

20101330311 is a deficient number, since it is larger than the sum of its proper divisors (6700443441).

20101330311 is an equidigital number, since it uses as much as digits as its factorization.

20101330311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700443440.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20101330311 its reverse (11303310102), we get a palindrome (31404640413).

The spelling of 20101330311 in words is "twenty billion, one hundred one million, three hundred thirty thousand, three hundred eleven".