2031142042 has 4 divisors (see below), whose sum is σ = 3046713066. Its totient is φ = 1015571020.

The previous prime is 2031142039. The next prime is 2031142063. The reversal of 2031142042 is 2402411302.

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., 1160833041 + 870309001 = 34071^2 + 29501^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507785509 + ... + 507785512.

Almost surely, 2^2031142042 is an apocalyptic number.

2031142042 is a deficient number, since it is larger than the sum of its proper divisors (1015571024).

2031142042 is a wasteful number, since it uses less digits than its factorization.

2031142042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015571023.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2031142042 is about 45068.1932409099. The cubic root of 2031142042 is about 1266.4268177289.

Adding to 2031142042 its reverse (2402411302), we get a palindrome (4433553344).

The spelling of 2031142042 in words is "two billion, thirty-one million, one hundred forty-two thousand, forty-two".