43146307231 has 2 divisors, whose sum is σ = 43146307232. Its totient is φ = 43146307230.

The previous prime is 43146307123. The next prime is 43146307249. The reversal of 43146307231 is 13270364134.

Together with previous prime (43146307123) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43146307231 - 2¹³ = 43146299039 is a prime.

It is a super-2 number, since 2×43146307231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43146307531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21573153615 + 21573153616.

It is an arithmetic number, because the mean of its divisors is an integer number (21573153616).

Almost surely, 2^43146307231 is an apocalyptic number.

43146307231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43146307231 is an equidigital number, since it uses as much as digits as its factorization.

43146307231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 43146307231 in words is "forty-three billion, one hundred forty-six million, three hundred seven thousand, two hundred thirty-one".