43040203044031 has 4 divisors (see below), whose sum is σ = 43062772633272. Its totient is φ = 43017633454792.

The previous prime is 43040203044019. The next prime is 43040203044061. The reversal of 43040203044031 is 13044030204034.

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 43040203044031 - 2¹⁵ = 43040203011263 is a prime.

It is a super-2 number, since 2×43040203044031² (a number of 28 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 (43040203044061) 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, 11284791760 + ... + 11284795573.

It is an arithmetic number, because the mean of its divisors is an integer number (10765693158318).

Almost surely, 2^{43040203044031} is an apocalyptic number.

43040203044031 is a deficient number, since it is larger than the sum of its proper divisors (22569589241).

43040203044031 is a wasteful number, since it uses less digits than its factorization.

43040203044031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22569589240.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 43040203044031 its reverse (13044030204034), we get a palindrome (56084233248065).

The spelling of 43040203044031 in words is "forty-three trillion, forty billion, two hundred three million, forty-four thousand, thirty-one".