123122103210 has 24 divisors (see below), whose sum is σ = 320117468580. Its totient is φ = 32832560832.

The previous prime is 123122103197. The next prime is 123122103211. The reversal of 123122103210 is 12301221321.

123122103210 is a `hidden beast` number, since 1 + 231 + 221 + 0 + 3 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119379233169 + 3742870041 = 345513^2 + 61179^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123122103211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 684011595 + ... + 684011774.

Almost surely, 2^123122103210 is an apocalyptic number.

123122103210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123122103210 is an abundant number, since it is smaller than the sum of its proper divisors (196995365370).

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

123122103210 is a wasteful number, since it uses less digits than its factorization.

123122103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368023382 (or 1368023379 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 123122103210 its reverse (12301221321), we get a palindrome (135423324531).

The spelling of 123122103210 in words is "one hundred twenty-three billion, one hundred twenty-two million, one hundred three thousand, two hundred ten".