20113442311 has 8 divisors (see below), whose sum is σ = 20494625600. Its totient is φ = 19735114752.

The previous prime is 20113442299. The next prime is 20113442329. The reversal of 20113442311 is 11324431102.

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 20113442311 - 2³¹ = 17965958663 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 (20113442341) 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, 699711 + ... + 727888.

It is an arithmetic number, because the mean of its divisors is an integer number (2561828200).

Almost surely, 2^20113442311 is an apocalyptic number.

20113442311 is a deficient number, since it is larger than the sum of its proper divisors (381183289).

20113442311 is a wasteful number, since it uses less digits than its factorization.

20113442311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427865.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20113442311 its reverse (11324431102), we get a palindrome (31437873413).

The spelling of 20113442311 in words is "twenty billion, one hundred thirteen million, four hundred forty-two thousand, three hundred eleven".