2012561042 has 16 divisors (see below), whose sum is σ = 3151794240. Its totient is φ = 962010192.

The previous prime is 2012561027. The next prime is 2012561071. The reversal of 2012561042 is 2401652102.

It is a happy number.

It is a super-2 number, since 2×2012561042² = 8100803895552251528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 2012560999 and 2012561017.

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, 82553 + ... + 104115.

It is an arithmetic number, because the mean of its divisors is an integer number (196987140).

Almost surely, 2^2012561042 is an apocalyptic number.

2012561042 is a deficient number, since it is larger than the sum of its proper divisors (1139233198).

2012561042 is a wasteful number, since it uses less digits than its factorization.

2012561042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23617.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2012561042 is about 44861.5764546900. The cubic root of 2012561042 is about 1262.5532006729.

The spelling of 2012561042 in words is "two billion, twelve million, five hundred sixty-one thousand, forty-two".