123123103210 has 16 divisors (see below), whose sum is σ = 221625875592. Its totient is φ = 49248288000.

The previous prime is 123123103199. The next prime is 123123103237. The reversal of 123123103210 is 12301321321.

It can be written as a sum of positive squares in 4 ways, for example, as 88139515689 + 34983587521 = 296883^2 + 187039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675910 + ... + 838510.

Almost surely, 2^123123103210 is an apocalyptic number.

123123103210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123123103210 is a deficient number, since it is larger than the sum of its proper divisors (98502772382).

123123103210 is a wasteful number, since it uses less digits than its factorization.

123123103210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238329.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123123103210 its reverse (12301321321), we get a palindrome (135424424531).

The spelling of 123123103210 in words is "one hundred twenty-three billion, one hundred twenty-three million, one hundred three thousand, two hundred ten".