43345413131 has 2 divisors, whose sum is σ = 43345413132. Its totient is φ = 43345413130.

The previous prime is 43345413047. The next prime is 43345413217. The reversal of 43345413131 is 13131454334.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43345413131 - 2²² = 43341218827 is a prime.

It is a super-2 number, since 2×43345413131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43345416131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21672706565 + 21672706566.

It is an arithmetic number, because the mean of its divisors is an integer number (21672706566).

Almost surely, 2^43345413131 is an apocalyptic number.

43345413131 is a deficient number, since it is larger than the sum of its proper divisors (1).

43345413131 is an equidigital number, since it uses as much as digits as its factorization.

43345413131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

Adding to 43345413131 its reverse (13131454334), we get a palindrome (56476867465).

The spelling of 43345413131 in words is "forty-three billion, three hundred forty-five million, four hundred thirteen thousand, one hundred thirty-one".