123120103210 has 32 divisors (see below), whose sum is σ = 238679908992. Its totient is φ = 45456621120.

The previous prime is 123120103193. The next prime is 123120103213. The reversal of 123120103210 is 12301021321.

It is not an unprimeable number, because it can be changed into a prime (123120103213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2876587 + ... + 2919073.

It is an arithmetic number, because the mean of its divisors is an integer number (7458747156).

Almost surely, 2^123120103210 is an apocalyptic number.

123120103210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123120103210 is a deficient number, since it is larger than the sum of its proper divisors (115559805782).

123120103210 is a wasteful number, since it uses less digits than its factorization.

123120103210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64798.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 123120103210 its reverse (12301021321), we get a palindrome (135421124531).

The spelling of 123120103210 in words is "one hundred twenty-three billion, one hundred twenty million, one hundred three thousand, two hundred ten".