43113144431 has 16 divisors (see below), whose sum is σ = 49512660480. Its totient is φ = 36774180960.

The previous prime is 43113144427. The next prime is 43113144439. The reversal of 43113144431 is 13444131134.

43113144431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43113144431 - 2² = 43113144427 is a prime.

It is a super-2 number, since 2×43113144431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43113144394 and 43113144403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43113144439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218926 + ... + 1253796.

It is an arithmetic number, because the mean of its divisors is an integer number (3094541280).

Almost surely, 2^43113144431 is an apocalyptic number.

43113144431 is a deficient number, since it is larger than the sum of its proper divisors (6399516049).

43113144431 is a wasteful number, since it uses less digits than its factorization.

43113144431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35734.

The product of its digits is 6912, while the sum is 29.

Adding to 43113144431 its reverse (13444131134), we get a palindrome (56557275565).

The spelling of 43113144431 in words is "forty-three billion, one hundred thirteen million, one hundred forty-four thousand, four hundred thirty-one".