1012112405 has 8 divisors (see below), whose sum is σ = 1214810784. Its totient is φ = 809506000.

The previous prime is 1012112377. The next prime is 1012112443. The reversal of 1012112405 is 5042112101.

1012112405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012112405 - 2⁶ = 1012112341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4130 + ... + 45180.

It is an arithmetic number, because the mean of its divisors is an integer number (151851348).

Almost surely, 2^1012112405 is an apocalyptic number.

It is an amenable number.

1012112405 is a deficient number, since it is larger than the sum of its proper divisors (202698379).

1012112405 is an equidigital number, since it uses as much as digits as its factorization.

1012112405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45987.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1012112405 is about 31813.7141025690. The cubic root of 1012112405 is about 1004.0212759971.

Adding to 1012112405 its reverse (5042112101), we get a palindrome (6054224506).

The spelling of 1012112405 in words is "one billion, twelve million, one hundred twelve thousand, four hundred five".