43454240031 has 4 divisors (see below), whose sum is σ = 57938986712. Its totient is φ = 28969493352.

The previous prime is 43454240017. The next prime is 43454240041. The reversal of 43454240031 is 13004245434.

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

It is not a de Polignac number, because 43454240031 - 2⁹ = 43454239519 is a prime.

It is a super-2 number, since 2×43454240031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43454240041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7242373336 + ... + 7242373341.

It is an arithmetic number, because the mean of its divisors is an integer number (14484746678).

Almost surely, 2^43454240031 is an apocalyptic number.

43454240031 is a deficient number, since it is larger than the sum of its proper divisors (14484746681).

43454240031 is a wasteful number, since it uses less digits than its factorization.

43454240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14484746680.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 43454240031 its reverse (13004245434), we get a palindrome (56458485465).

The spelling of 43454240031 in words is "forty-three billion, four hundred fifty-four million, two hundred forty thousand, thirty-one".