2142021003 has 4 divisors (see below), whose sum is σ = 2856028008. Its totient is φ = 1428014000.

The previous prime is 2142021001. The next prime is 2142021059. The reversal of 2142021003 is 3001202412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2142021003 - 2¹ = 2142021001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142021001) 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 3 ways as a sum of consecutive naturals, for example, 357003498 + ... + 357003503.

It is an arithmetic number, because the mean of its divisors is an integer number (714007002).

Almost surely, 2^2142021003 is an apocalyptic number.

2142021003 is a deficient number, since it is larger than the sum of its proper divisors (714007005).

2142021003 is an equidigital number, since it uses as much as digits as its factorization.

2142021003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714007004.

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

The square root of 2142021003 is about 46281.9727647818. The cubic root of 2142021003 is about 1289.0642820686.

Adding to 2142021003 its reverse (3001202412), we get a palindrome (5143223415).

The spelling of 2142021003 in words is "two billion, one hundred forty-two million, twenty-one thousand, three".