2010023021 has 4 divisors (see below), whose sum is σ = 2010440544. Its totient is φ = 2009605500.

The previous prime is 2010022967. The next prime is 2010023023. The reversal of 2010023021 is 1203200102.

It is a happy number.

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 2010023021 - 2¹⁰ = 2010021997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010022993 and 2010023011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010023023) 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, 201455 + ... + 211196.

It is an arithmetic number, because the mean of its divisors is an integer number (502610136).

Almost surely, 2^2010023021 is an apocalyptic number.

It is an amenable number.

2010023021 is a deficient number, since it is larger than the sum of its proper divisors (417523).

2010023021 is an equidigital number, since it uses as much as digits as its factorization.

2010023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417522.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2010023021 is about 44833.2802837357. The cubic root of 2010023021 is about 1262.0222462618.

Adding to 2010023021 its reverse (1203200102), we get a palindrome (3213223123).

The spelling of 2010023021 in words is "two billion, ten million, twenty-three thousand, twenty-one".