2042103421 has 4 divisors (see below), whose sum is σ = 2053512000. Its totient is φ = 2030694844.

The previous prime is 2042103377. The next prime is 2042103449. The reversal of 2042103421 is 1243012402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2042103421 - 2¹⁷ = 2041972349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042103821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5704021 + ... + 5704378.

It is an arithmetic number, because the mean of its divisors is an integer number (513378000).

Almost surely, 2^2042103421 is an apocalyptic number.

It is an amenable number.

2042103421 is a deficient number, since it is larger than the sum of its proper divisors (11408579).

2042103421 is a wasteful number, since it uses less digits than its factorization.

2042103421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11408578.

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

The square root of 2042103421 is about 45189.6384251965. The cubic root of 2042103421 is about 1268.7008893089.

Adding to 2042103421 its reverse (1243012402), we get a palindrome (3285115823).

The spelling of 2042103421 in words is "two billion, forty-two million, one hundred three thousand, four hundred twenty-one".