20404110311 has 8 divisors (see below), whose sum is σ = 23266225584. Its totient is φ = 17726647680.

The previous prime is 20404110301. The next prime is 20404110367. The reversal of 20404110311 is 11301140402.

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 20404110311 - 2¹⁰ = 20404109287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20404110311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404110301) 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, 46162925 + ... + 46163366.

It is an arithmetic number, because the mean of its divisors is an integer number (2908278198).

Almost surely, 2^20404110311 is an apocalyptic number.

20404110311 is a deficient number, since it is larger than the sum of its proper divisors (2862115273).

20404110311 is a wasteful number, since it uses less digits than its factorization.

20404110311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92326321.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20404110311 its reverse (11301140402), we get a palindrome (31705250713).

The spelling of 20404110311 in words is "twenty billion, four hundred four million, one hundred ten thousand, three hundred eleven".