43431233234131 has 2 divisors, whose sum is σ = 43431233234132. Its totient is φ = 43431233234130.

The previous prime is 43431233234099. The next prime is 43431233234161. The reversal of 43431233234131 is 13143233213434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43431233234131 - 2⁵ = 43431233234099 is a prime.

It is a super-2 number, since 2×43431233234131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43431233234161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21715616617065 + 21715616617066.

It is an arithmetic number, because the mean of its divisors is an integer number (21715616617066).

Almost surely, 2^{43431233234131} is an apocalyptic number.

43431233234131 is a deficient number, since it is larger than the sum of its proper divisors (1).

43431233234131 is an equidigital number, since it uses as much as digits as its factorization.

43431233234131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 37.

Adding to 43431233234131 its reverse (13143233213434), we get a palindrome (56574466447565).

The spelling of 43431233234131 in words is "forty-three trillion, four hundred thirty-one billion, two hundred thirty-three million, two hundred thirty-four thousand, one hundred thirty-one".