123031320210 has 96 divisors (see below), whose sum is σ = 320909516928. Its totient is φ = 32703091200.

The previous prime is 123031320197. The next prime is 123031320221. The reversal of 123031320210 is 12023130321.

123031320210 is a `hidden beast` number, since 123 + 0 + 313 + 20 + 210 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65685834 + ... + 65687706.

It is an arithmetic number, because the mean of its divisors is an integer number (3342807468).

Almost surely, 2^123031320210 is an apocalyptic number.

123031320210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123031320210 is an abundant number, since it is smaller than the sum of its proper divisors (197878196718).

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

123031320210 is a wasteful number, since it uses less digits than its factorization.

123031320210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840 (or 3837 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123031320210 its reverse (12023130321), we get a palindrome (135054450531).

The spelling of 123031320210 in words is "one hundred twenty-three billion, thirty-one million, three hundred twenty thousand, two hundred ten".