43423011011 has 4 divisors (see below), whose sum is σ = 43475902224. Its totient is φ = 43370119800.

The previous prime is 43423010999. The next prime is 43423011019. The reversal of 43423011011 is 11011032434.

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 43423011011 - 2²⁶ = 43355902147 is a prime.

It is a super-2 number, since 2×43423011011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43423011019) 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, 26444375 + ... + 26446016.

It is an arithmetic number, because the mean of its divisors is an integer number (10868975556).

Almost surely, 2^43423011011 is an apocalyptic number.

43423011011 is a deficient number, since it is larger than the sum of its proper divisors (52891213).

43423011011 is an equidigital number, since it uses as much as digits as its factorization.

43423011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52891212.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 43423011011 its reverse (11011032434), we get a palindrome (54434043445).

The spelling of 43423011011 in words is "forty-three billion, four hundred twenty-three million, eleven thousand, eleven".