1210042042 has 32 divisors (see below), whose sum is σ = 2008540800. Its totient is φ = 542150400.

The previous prime is 1210042039. The next prime is 1210042049. The reversal of 1210042042 is 2402400121.

It is not an unprimeable number, because it can be changed into a prime (1210042049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800067 + ... + 801577.

It is an arithmetic number, because the mean of its divisors is an integer number (62766900).

Almost surely, 2^1210042042 is an apocalyptic number.

1210042042 is a deficient number, since it is larger than the sum of its proper divisors (798498758).

1210042042 is a wasteful number, since it uses less digits than its factorization.

1210042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1210042042 is about 34785.6585678639. The cubic root of 1210042042 is about 1065.6145782350.

Adding to 1210042042 its reverse (2402400121), we get a palindrome (3612442163).

The spelling of 1210042042 in words is "one billion, two hundred ten million, forty-two thousand, forty-two".