1040042111 has 4 divisors (see below), whose sum is σ = 1040416224. Its totient is φ = 1039668000.

The previous prime is 1040042077. The next prime is 1040042119. The reversal of 1040042111 is 1112400401.

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

It is a cyclic number.

It is not a de Polignac number, because 1040042111 - 2¹⁰ = 1040041087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040042119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182855 + ... + 188456.

It is an arithmetic number, because the mean of its divisors is an integer number (260104056).

Almost surely, 2^1040042111 is an apocalyptic number.

1040042111 is a deficient number, since it is larger than the sum of its proper divisors (374113).

1040042111 is an equidigital number, since it uses as much as digits as its factorization.

1040042111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374112.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1040042111 is about 32249.6838899236. The cubic root of 1040042111 is about 1013.1730783650.

Adding to 1040042111 its reverse (1112400401), we get a palindrome (2152442512).

The spelling of 1040042111 in words is "one billion, forty million, forty-two thousand, one hundred eleven".