2021035042 has 16 divisors (see below), whose sum is σ = 3318271992. Its totient is φ = 917493120.

The previous prime is 2021035033. The next prime is 2021035063. The reversal of 2021035042 is 2405301202.

It can be written as a sum of positive squares in 4 ways, for example, as 452795841 + 1568239201 = 21279^2 + 39601^2 .

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, 635563 + ... + 638734.

Almost surely, 2^2021035042 is an apocalyptic number.

2021035042 is a deficient number, since it is larger than the sum of its proper divisors (1297236950).

2021035042 is a wasteful number, since it uses less digits than its factorization.

2021035042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274373.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2021035042 is about 44955.9233249635. The cubic root of 2021035042 is about 1264.3227361978.

Adding to 2021035042 its reverse (2405301202), we get a palindrome (4426336244).

The spelling of 2021035042 in words is "two billion, twenty-one million, thirty-five thousand, forty-two".