1031434431043 has 2 divisors, whose sum is σ = 1031434431044. Its totient is φ = 1031434431042.

The previous prime is 1031434431017. The next prime is 1031434431073. The reversal of 1031434431043 is 3401344341301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031434431043 - 2²¹ = 1031432333891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031434430996 and 1031434431014.

It is not a weakly prime, because it can be changed into another prime (1031434431073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515717215521 + 515717215522.

It is an arithmetic number, because the mean of its divisors is an integer number (515717215522).

Almost surely, 2^{1031434431043} is an apocalyptic number.

1031434431043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031434431043 is an equidigital number, since it uses as much as digits as its factorization.

1031434431043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1031434431043 its reverse (3401344341301), we get a palindrome (4432778772344).

The spelling of 1031434431043 in words is "one trillion, thirty-one billion, four hundred thirty-four million, four hundred thirty-one thousand, forty-three".