43313142431 has 4 divisors (see below), whose sum is σ = 46644922632. Its totient is φ = 39981362232.

The previous prime is 43313142421. The next prime is 43313142449. The reversal of 43313142431 is 13424131334.

It is a happy number.

43313142431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13424131334 = 2 ⋅6712065667.

It is a cyclic number.

It is not a de Polignac number, because 43313142431 - 2¹⁸ = 43312880287 is a prime.

It is a super-2 number, since 2×43313142431² (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 = 43313142394 and 43313142403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43313142401) 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, 1665890081 + ... + 1665890106.

It is an arithmetic number, because the mean of its divisors is an integer number (11661230658).

Almost surely, 2^43313142431 is an apocalyptic number.

43313142431 is a deficient number, since it is larger than the sum of its proper divisors (3331780201).

43313142431 is a wasteful number, since it uses less digits than its factorization.

43313142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331780200.

The product of its digits is 10368, while the sum is 29.

Adding to 43313142431 its reverse (13424131334), we get a palindrome (56737273765).

The spelling of 43313142431 in words is "forty-three billion, three hundred thirteen million, one hundred forty-two thousand, four hundred thirty-one".