43013113400431 has 2 divisors, whose sum is σ = 43013113400432. Its totient is φ = 43013113400430.

The previous prime is 43013113400401. The next prime is 43013113400437. The reversal of 43013113400431 is 13400431131034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43013113400431 - 2¹¹ = 43013113398383 is a prime.

It is a super-2 number, since 2×43013113400431² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43013113400431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43013113400437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21506556700215 + 21506556700216.

It is an arithmetic number, because the mean of its divisors is an integer number (21506556700216).

Almost surely, 2^{43013113400431} is an apocalyptic number.

43013113400431 is a deficient number, since it is larger than the sum of its proper divisors (1).

43013113400431 is an equidigital number, since it uses as much as digits as its factorization.

43013113400431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 43013113400431 its reverse (13400431131034), we get a palindrome (56413544531465).

The spelling of 43013113400431 in words is "forty-three trillion, thirteen billion, one hundred thirteen million, four hundred thousand, four hundred thirty-one".