123323204210 has 24 divisors (see below), whose sum is σ = 235807627140. Its totient is φ = 46427558144.

The previous prime is 123323204197. The next prime is 123323204231. The reversal of 123323204210 is 12402323321.

It can be written as a sum of positive squares in 6 ways, for example, as 58640981281 + 64682222929 = 242159^2 + 254327^2 .

It is a super-2 number, since 2×123323204210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21333305 + ... + 21339084.

Almost surely, 2^123323204210 is an apocalyptic number.

123323204210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123323204210 is a deficient number, since it is larger than the sum of its proper divisors (112484422930).

123323204210 is a wasteful number, since it uses less digits than its factorization.

123323204210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42672430 (or 42672413 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123323204210 its reverse (12402323321), we get a palindrome (135725527531).

The spelling of 123323204210 in words is "one hundred twenty-three billion, three hundred twenty-three million, two hundred four thousand, two hundred ten".