1031021010043 has 2 divisors, whose sum is σ = 1031021010044. Its totient is φ = 1031021010042.

The previous prime is 1031021010017. The next prime is 1031021010077. The reversal of 1031021010043 is 3400101201301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031021010043 - 2¹³ = 1031021001851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031021009999 and 1031021010026.

It is not a weakly prime, because it can be changed into another prime (1031021010083) 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, 515510505021 + 515510505022.

It is an arithmetic number, because the mean of its divisors is an integer number (515510505022).

Almost surely, 2^{1031021010043} is an apocalyptic number.

1031021010043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031021010043 is an equidigital number, since it uses as much as digits as its factorization.

1031021010043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1031021010043 its reverse (3400101201301), we get a palindrome (4431122211344).

The spelling of 1031021010043 in words is "one trillion, thirty-one billion, twenty-one million, ten thousand, forty-three".