2010021043 has 4 divisors (see below), whose sum is σ = 2034238248. Its totient is φ = 1985803840.

The previous prime is 2010021029. The next prime is 2010021047. The reversal of 2010021043 is 3401200102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2010021043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010021047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12108478 + ... + 12108643.

It is an arithmetic number, because the mean of its divisors is an integer number (508559562).

Almost surely, 2^2010021043 is an apocalyptic number.

2010021043 is a deficient number, since it is larger than the sum of its proper divisors (24217205).

2010021043 is an equidigital number, since it uses as much as digits as its factorization.

2010021043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24217204.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2010021043 is about 44833.2582242246. The cubic root of 2010021043 is about 1262.0218322897.

Adding to 2010021043 its reverse (3401200102), we get a palindrome (5411221145).

The spelling of 2010021043 in words is "two billion, ten million, twenty-one thousand, forty-three".