2030010021 has 24 divisors (see below), whose sum is σ = 3161077920. Its totient is φ = 1247937696.

The previous prime is 2030010007. The next prime is 2030010023. The reversal of 2030010021 is 1200100302.

It is a happy number.

It is not a de Polignac number, because 2030010021 - 2⁶ = 2030009957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2030009985 and 2030010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030010023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110710 + ... + 127736.

It is an arithmetic number, because the mean of its divisors is an integer number (131711580).

Almost surely, 2^2030010021 is an apocalyptic number.

It is an amenable number.

2030010021 is a deficient number, since it is larger than the sum of its proper divisors (1131067899).

2030010021 is a wasteful number, since it uses less digits than its factorization.

2030010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18065 (or 18062 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2030010021 is about 45055.6325113742. The cubic root of 2030010021 is about 1266.1915004969.

Adding to 2030010021 its reverse (1200100302), we get a palindrome (3230110323).

The spelling of 2030010021 in words is "two billion, thirty million, ten thousand, twenty-one".