43255334131 has 4 divisors (see below), whose sum is σ = 43259009472. Its totient is φ = 43251658792.

The previous prime is 43255334119. The next prime is 43255334141. The reversal of 43255334131 is 13143355234.

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 43255334131 - 2⁵ = 43255334099 is a prime.

It is a super-2 number, since 2×43255334131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43255334141) 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, 1819960 + ... + 1843573.

It is an arithmetic number, because the mean of its divisors is an integer number (10814752368).

Almost surely, 2^43255334131 is an apocalyptic number.

43255334131 is a deficient number, since it is larger than the sum of its proper divisors (3675341).

43255334131 is a wasteful number, since it uses less digits than its factorization.

43255334131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675340.

The product of its digits is 64800, while the sum is 34.

Adding to 43255334131 its reverse (13143355234), we get a palindrome (56398689365).

The spelling of 43255334131 in words is "forty-three billion, two hundred fifty-five million, three hundred thirty-four thousand, one hundred thirty-one".