2130040042 has 16 divisors (see below), whose sum is σ = 3458308392. Its totient is φ = 978102720.

The previous prime is 2130040019. The next prime is 2130040069. The reversal of 2130040042 is 2400400312.

It can be written as a sum of positive squares in 4 ways, for example, as 2062158921 + 67881121 = 45411^2 + 8239^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2130039998 and 2130040025.

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, 202809 + ... + 213052.

Almost surely, 2^2130040042 is an apocalyptic number.

2130040042 is a deficient number, since it is larger than the sum of its proper divisors (1328268350).

2130040042 is a wasteful number, since it uses less digits than its factorization.

2130040042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416073.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2130040042 is about 46152.3568412275. The cubic root of 2130040042 is about 1286.6564137668.

Adding to 2130040042 its reverse (2400400312), we get a palindrome (4530440354).

The spelling of 2130040042 in words is "two billion, one hundred thirty million, forty thousand, forty-two".