1012040111 has 4 divisors (see below), whose sum is σ = 1065305400. Its totient is φ = 958774824.

The previous prime is 1012040087. The next prime is 1012040123. The reversal of 1012040111 is 1110402101.

1012040111 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, and also an emirpimes, since its reverse is a distinct semiprime: 1110402101 = 3449 ⋅321949.

It is a cyclic number.

It is not a de Polignac number, because 1012040111 - 2⁶ = 1012040047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012040092 and 1012040101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012043111) 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, 26632616 + ... + 26632653.

It is an arithmetic number, because the mean of its divisors is an integer number (266326350).

Almost surely, 2^1012040111 is an apocalyptic number.

1012040111 is a deficient number, since it is larger than the sum of its proper divisors (53265289).

1012040111 is an equidigital number, since it uses as much as digits as its factorization.

1012040111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53265288.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1012040111 is about 31812.5778741679. The cubic root of 1012040111 is about 1003.9973700745.

Adding to 1012040111 its reverse (1110402101), we get a palindrome (2122442212).

The spelling of 1012040111 in words is "one billion, twelve million, forty thousand, one hundred eleven".