43140403431 has 24 divisors (see below), whose sum is σ = 65754078000. Its totient is φ = 27179908992.

The previous prime is 43140403429. The next prime is 43140403457. The reversal of 43140403431 is 13430404134.

43140403431 is a `hidden beast` number, since 4 + 314 + 0 + 4 + 0 + 343 + 1 = 666.

43140403431 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 43140403431 - 2¹ = 43140403429 is a prime.

It is a super-2 number, since 2×43140403431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43140403395 and 43140403404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140403421) 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, 238476 + ... + 378353.

It is an arithmetic number, because the mean of its divisors is an integer number (2739753250).

Almost surely, 2^43140403431 is an apocalyptic number.

43140403431 is a deficient number, since it is larger than the sum of its proper divisors (22613674569).

43140403431 is a wasteful number, since it uses less digits than its factorization.

43140403431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617263 (or 617260 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 43140403431 its reverse (13430404134), we get a palindrome (56570807565).

The spelling of 43140403431 in words is "forty-three billion, one hundred forty million, four hundred three thousand, four hundred thirty-one".