2042013021 has 12 divisors (see below), whose sum is σ = 2892264192. Its totient is φ = 1281262528.

The previous prime is 2042012969. The next prime is 2042013053. The reversal of 2042013021 is 1203102402.

It is not a de Polignac number, because 2042013021 - 2⁶ = 2042012957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042018021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1176765 + ... + 1178498.

It is an arithmetic number, because the mean of its divisors is an integer number (241022016).

Almost surely, 2^2042013021 is an apocalyptic number.

It is an amenable number.

2042013021 is a deficient number, since it is larger than the sum of its proper divisors (850251171).

2042013021 is a wasteful number, since it uses less digits than its factorization.

2042013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355300 (or 2355283 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2042013021 is about 45188.6381848358. The cubic root of 2042013021 is about 1268.6821680480.

Adding to 2042013021 its reverse (1203102402), we get a palindrome (3245115423).

The spelling of 2042013021 in words is "two billion, forty-two million, thirteen thousand, twenty-one".