2031420042 has 12 divisors (see below), whose sum is σ = 4401410130. Its totient is φ = 677140008.

The previous prime is 2031420031. The next prime is 2031420047. The reversal of 2031420042 is 2400241302.

2031420042 is a `hidden beast` number, since 203 + 1 + 420 + 0 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1105496001 + 925924041 = 33249^2 + 30429^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 112856669 = 2031420042 / (2 + 0 + 3 + 1 + 4 + 2 + 0 + 0 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2031419997 and 2031420024.

It is not an unprimeable number, because it can be changed into a prime (2031420047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56428317 + ... + 56428352.

Almost surely, 2^2031420042 is an apocalyptic number.

2031420042 is an abundant number, since it is smaller than the sum of its proper divisors (2369990088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031420042 is a wasteful number, since it uses less digits than its factorization.

2031420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112856677 (or 112856674 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2031420042 is about 45071.2773504368. The cubic root of 2031420042 is about 1266.4845932048.

Adding to 2031420042 its reverse (2400241302), we get a palindrome (4431661344).

The spelling of 2031420042 in words is "two billion, thirty-one million, four hundred twenty thousand, forty-two".