123013210 has 16 divisors (see below), whose sum is σ = 225054792. Its totient is φ = 48398400.

The previous prime is 123013199. The next prime is 123013213. The reversal of 123013210 is 12310321.

It can be written as a sum of positive squares in 4 ways, for example, as 57289761 + 65723449 = 7569^2 + 8107^2 .

It is not an unprimeable number, because it can be changed into a prime (123013213) 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, 100221 + ... + 101440.

Almost surely, 2^123013210 is an apocalyptic number.

123013210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123013210 is a deficient number, since it is larger than the sum of its proper divisors (102041582).

123013210 is a wasteful number, since it uses less digits than its factorization.

123013210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201729.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123013210 is about 11091.1320432136. The cubic root of 123013210 is about 497.3367864396.

Adding to 123013210 its reverse (12310321), we get a palindrome (135323531).

The spelling of 123013210 in words is "one hundred twenty-three million, thirteen thousand, two hundred ten".