20340204411 has 16 divisors (see below), whose sum is σ = 28243764000. Its totient is φ = 13004667648.

The previous prime is 20340204407. The next prime is 20340204431. The reversal of 20340204411 is 11440204302.

It is not a de Polignac number, because 20340204411 - 2² = 20340204407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20340204431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771586 + ... + 797511.

It is an arithmetic number, because the mean of its divisors is an integer number (1765235250).

Almost surely, 2^20340204411 is an apocalyptic number.

20340204411 is a deficient number, since it is larger than the sum of its proper divisors (7903559589).

20340204411 is a wasteful number, since it uses less digits than its factorization.

20340204411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569278.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20340204411 its reverse (11440204302), we get a palindrome (31780408713).

The spelling of 20340204411 in words is "twenty billion, three hundred forty million, two hundred four thousand, four hundred eleven".