43140242203 has 4 divisors (see below), whose sum is σ = 43363766968. Its totient is φ = 42916717440.

The previous prime is 43140242183. The next prime is 43140242207. The reversal of 43140242203 is 30224204134.

It is a happy number.

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 43140242203 - 2⁹ = 43140241691 is a prime.

It is a super-2 number, since 2×43140242203² (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 (43140242207) 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, 111762093 + ... + 111762478.

It is an arithmetic number, because the mean of its divisors is an integer number (10840941742).

Almost surely, 2^43140242203 is an apocalyptic number.

43140242203 is a deficient number, since it is larger than the sum of its proper divisors (223524765).

43140242203 is a wasteful number, since it uses less digits than its factorization.

43140242203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223524764.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 43140242203 its reverse (30224204134), we get a palindrome (73364446337).

The spelling of 43140242203 in words is "forty-three billion, one hundred forty million, two hundred forty-two thousand, two hundred three".