40421134243 has 24 divisors (see below), whose sum is σ = 51000760944. Its totient is φ = 31813286400.

The previous prime is 40421134241. The next prime is 40421134249. The reversal of 40421134243 is 34243112404.

40421134243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40421134243 - 2¹ = 40421134241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40421134241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 557613 + ... + 625918.

It is an arithmetic number, because the mean of its divisors is an integer number (2125031706).

Almost surely, 2^40421134243 is an apocalyptic number.

40421134243 is a deficient number, since it is larger than the sum of its proper divisors (10579626701).

40421134243 is a wasteful number, since it uses less digits than its factorization.

40421134243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183603 (or 1183596 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40421134243 its reverse (34243112404), we get a palindrome (74664246647).

The spelling of 40421134243 in words is "forty billion, four hundred twenty-one million, one hundred thirty-four thousand, two hundred forty-three".