43223311131 has 128 divisors (see below), whose sum is σ = 82074746880. Its totient is φ = 19498406400.

The previous prime is 43223311073. The next prime is 43223311133. The reversal of 43223311131 is 13111332234.

It is not a de Polignac number, because 43223311131 - 2¹⁹ = 43222786843 is a prime.

It is a super-2 number, since 2×43223311131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43223311133) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4208080 + ... + 4218338.

It is an arithmetic number, because the mean of its divisors is an integer number (641208960).

Almost surely, 2^43223311131 is an apocalyptic number.

43223311131 is a deficient number, since it is larger than the sum of its proper divisors (38851435749).

43223311131 is a wasteful number, since it uses less digits than its factorization.

43223311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10377.

The product of its digits is 1296, while the sum is 24.

Adding to 43223311131 its reverse (13111332234), we get a palindrome (56334643365).

The spelling of 43223311131 in words is "forty-three billion, two hundred twenty-three million, three hundred eleven thousand, one hundred thirty-one".