1011166042 has 4 divisors (see below), whose sum is σ = 1516749066. Its totient is φ = 505583020.

The previous prime is 1011166021. The next prime is 1011166061. The reversal of 1011166042 is 2406611101.

1011166042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 934586041 + 76580001 = 30571^2 + 8751^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252791509 + ... + 252791512.

Almost surely, 2^1011166042 is an apocalyptic number.

1011166042 is a deficient number, since it is larger than the sum of its proper divisors (505583024).

1011166042 is an equidigital number, since it uses as much as digits as its factorization.

1011166042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505583023.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1011166042 is about 31798.8371171023. The cubic root of 1011166042 is about 1003.7082459148.

Adding to 1011166042 its reverse (2406611101), we get a palindrome (3417777143).

The spelling of 1011166042 in words is "one billion, eleven million, one hundred sixty-six thousand, forty-two".