20411400343 has 4 divisors (see below), whose sum is σ = 20517159088. Its totient is φ = 20305641600.

The previous prime is 20411400337. The next prime is 20411400371. The reversal of 20411400343 is 34300411402.

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 20411400343 - 2¹³ = 20411392151 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 (20411400743) 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, 52879083 + ... + 52879468.

It is an arithmetic number, because the mean of its divisors is an integer number (5129289772).

Almost surely, 2^20411400343 is an apocalyptic number.

20411400343 is a deficient number, since it is larger than the sum of its proper divisors (105758745).

20411400343 is a wasteful number, since it uses less digits than its factorization.

20411400343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105758744.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20411400343 its reverse (34300411402), we get a palindrome (54711811745).

The spelling of 20411400343 in words is "twenty billion, four hundred eleven million, four hundred thousand, three hundred forty-three".