1042139011 has 2 divisors, whose sum is σ = 1042139012. Its totient is φ = 1042139010.

The previous prime is 1042139009. The next prime is 1042139023. The reversal of 1042139011 is 1109312401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042139011 - 2¹ = 1042139009 is a prime.

Together with 1042139009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1042139051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521069505 + 521069506.

It is an arithmetic number, because the mean of its divisors is an integer number (521069506).

Almost surely, 2^1042139011 is an apocalyptic number.

1042139011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042139011 is an equidigital number, since it uses as much as digits as its factorization.

1042139011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1042139011 is about 32282.1779159957. The cubic root of 1042139011 is about 1013.8535304365.

The spelling of 1042139011 in words is "one billion, forty-two million, one hundred thirty-nine thousand, eleven".