20101311311 has 8 divisors (see below), whose sum is σ = 21017328000. Its totient is φ = 19188798552.

The previous prime is 20101311299. The next prime is 20101311319. The reversal of 20101311311 is 11311310102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20101311311 - 2³⁰ = 19027569487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101311319) 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, 864245 + ... + 887198.

It is an arithmetic number, because the mean of its divisors is an integer number (2627166000).

Almost surely, 2^20101311311 is an apocalyptic number.

20101311311 is a deficient number, since it is larger than the sum of its proper divisors (916016689).

20101311311 is a wasteful number, since it uses less digits than its factorization.

20101311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751965.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 20101311311 its reverse (11311310102), we get a palindrome (31412621413).

The spelling of 20101311311 in words is "twenty billion, one hundred one million, three hundred eleven thousand, three hundred eleven".