20413404311 has 4 divisors (see below), whose sum is σ = 20414661624. Its totient is φ = 20412147000.

The previous prime is 20413404301. The next prime is 20413404343. The reversal of 20413404311 is 11340431402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20413404311 - 2⁶ = 20413404247 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 (20413404301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603980 + ... + 636881.

It is an arithmetic number, because the mean of its divisors is an integer number (5103665406).

Almost surely, 2^20413404311 is an apocalyptic number.

20413404311 is a deficient number, since it is larger than the sum of its proper divisors (1257313).

20413404311 is a wasteful number, since it uses less digits than its factorization.

20413404311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257312.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20413404311 its reverse (11340431402), we get a palindrome (31753835713).

The spelling of 20413404311 in words is "twenty billion, four hundred thirteen million, four hundred four thousand, three hundred eleven".