2043100042 has 4 divisors (see below), whose sum is σ = 3064650066. Its totient is φ = 1021550020.

The previous prime is 2043100019. The next prime is 2043100057. The reversal of 2043100042 is 2400013402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1921857921 + 121242121 = 43839^2 + 11011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2043099989 and 2043100025.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510775009 + ... + 510775012.

Almost surely, 2^2043100042 is an apocalyptic number.

2043100042 is a deficient number, since it is larger than the sum of its proper divisors (1021550024).

2043100042 is a wasteful number, since it uses less digits than its factorization.

2043100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021550023.

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

The square root of 2043100042 is about 45200.6641765362. The cubic root of 2043100042 is about 1268.9072465218.

Adding to 2043100042 its reverse (2400013402), we get a palindrome (4443113444).

The spelling of 2043100042 in words is "two billion, forty-three million, one hundred thousand, forty-two".