1011434243 has 2 divisors, whose sum is σ = 1011434244. Its totient is φ = 1011434242.

The previous prime is 1011434231. The next prime is 1011434267. The reversal of 1011434243 is 3424341101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011434243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011434213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505717121 + 505717122.

It is an arithmetic number, because the mean of its divisors is an integer number (505717122).

Almost surely, 2^1011434243 is an apocalyptic number.

1011434243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011434243 is an equidigital number, since it uses as much as digits as its factorization.

1011434243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1011434243 is about 31803.0539885716. The cubic root of 1011434243 is about 1003.7969790365.

Adding to 1011434243 its reverse (3424341101), we get a palindrome (4435775344).

The spelling of 1011434243 in words is "one billion, eleven million, four hundred thirty-four thousand, two hundred forty-three".