43109032931 has 2 divisors, whose sum is σ = 43109032932. Its totient is φ = 43109032930.

The previous prime is 43109032903. The next prime is 43109032957. The reversal of 43109032931 is 13923090134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43109032931 - 2²² = 43104838627 is a prime.

It is a super-2 number, since 2×43109032931² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43109032891 and 43109032900.

It is not a weakly prime, because it can be changed into another prime (43109032231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21554516465 + 21554516466.

It is an arithmetic number, because the mean of its divisors is an integer number (21554516466).

Almost surely, 2^43109032931 is an apocalyptic number.

43109032931 is a deficient number, since it is larger than the sum of its proper divisors (1).

43109032931 is an equidigital number, since it uses as much as digits as its factorization.

43109032931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 43109032931 in words is "forty-three billion, one hundred nine million, thirty-two thousand, nine hundred thirty-one".