20340044411 has 32 divisors (see below), whose sum is σ = 21938024448. Its totient is φ = 18815322240.

The previous prime is 20340044401. The next prime is 20340044423. The reversal of 20340044411 is 11444004302.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20340044411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340044401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23568566 + ... + 23569428.

It is an arithmetic number, because the mean of its divisors is an integer number (685563264).

Almost surely, 2^20340044411 is an apocalyptic number.

20340044411 is a deficient number, since it is larger than the sum of its proper divisors (1597980037).

20340044411 is a wasteful number, since it uses less digits than its factorization.

20340044411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20340044411 its reverse (11444004302), we get a palindrome (31784048713).

The spelling of 20340044411 in words is "twenty billion, three hundred forty million, forty-four thousand, four hundred eleven".