1042243211 has 2 divisors, whose sum is σ = 1042243212. Its totient is φ = 1042243210.

The previous prime is 1042243199. The next prime is 1042243231. The reversal of 1042243211 is 1123422401.

It is an a-pointer prime, because the next prime (1042243231) can be obtained adding 1042243211 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042243211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042243231) 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, 521121605 + 521121606.

It is an arithmetic number, because the mean of its divisors is an integer number (521121606).

Almost surely, 2^1042243211 is an apocalyptic number.

1042243211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042243211 is an equidigital number, since it uses as much as digits as its factorization.

1042243211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1042243211 is about 32283.7917692454. The cubic root of 1042243211 is about 1013.8873199201.

Adding to 1042243211 its reverse (1123422401), we get a palindrome (2165665612).

The spelling of 1042243211 in words is "one billion, forty-two million, two hundred forty-three thousand, two hundred eleven".