123210010 has 48 divisors (see below), whose sum is σ = 281452320. Its totient is φ = 38401440.

The previous prime is 123209987. The next prime is 123210019. The reversal of 123210010 is 10012321.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (123210019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6040 + ... + 16819.

It is an arithmetic number, because the mean of its divisors is an integer number (5863590).

Almost surely, 2^123210010 is an apocalyptic number.

123210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123210010 is an abundant number, since it is smaller than the sum of its proper divisors (158242310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123210010 is a wasteful number, since it uses less digits than its factorization.

123210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22891 (or 22884 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 123210010 is about 11100.0004504504. Note that the first 3 decimals coincide. The cubic root of 123210010 is about 497.6018629330.

Subtracting from 123210010 its sum of digits (10), we obtain a square (123210000 = 11100²).

Adding to 123210010 its reverse (10012321), we get a palindrome (133222331).

The spelling of 123210010 in words is "one hundred twenty-three million, two hundred ten thousand, ten".