123103312010 has 48 divisors (see below), whose sum is σ = 257960039040. Its totient is φ = 42174629280.

The previous prime is 123103311983. The next prime is 123103312019. The reversal of 123103312010 is 10213301321.

It is a self number, because there is not a number n which added to its sum of digits gives 123103312010.

It is not an unprimeable number, because it can be changed into a prime (123103312019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551075 + ... + 741545.

It is an arithmetic number, because the mean of its divisors is an integer number (5374167480).

Almost surely, 2^123103312010 is an apocalyptic number.

123103312010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123103312010 is an abundant number, since it is smaller than the sum of its proper divisors (134856727030).

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

123103312010 is a wasteful number, since it uses less digits than its factorization.

123103312010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191811 (or 191804 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123103312010 its reverse (10213301321), we get a palindrome (133316613331).

The spelling of 123103312010 in words is "one hundred twenty-three billion, one hundred three million, three hundred twelve thousand, ten".