210000010023 has 8 divisors (see below), whose sum is σ = 311111126000. Its totient is φ = 140000006664.

The previous prime is 210000010013. The next prime is 210000010067. The reversal of 210000010023 is 320010000012.

It is a happy number.

It is not a de Polignac number, because 210000010023 - 2⁶ = 210000009959 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210000009987 and 210000010014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210000010013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888889048 + ... + 3888889101.

It is an arithmetic number, because the mean of its divisors is an integer number (38888890750).

Almost surely, 2^210000010023 is an apocalyptic number.

210000010023 is a deficient number, since it is larger than the sum of its proper divisors (101111115977).

210000010023 is an equidigital number, since it uses as much as digits as its factorization.

210000010023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7777778158 (or 7777778152 counting only the distinct ones).

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

Adding to 210000010023 its reverse (320010000012), we get a palindrome (530010010035).

The spelling of 210000010023 in words is "two hundred ten billion, ten thousand, twenty-three".