123123103320 has 128 divisors (see below), whose sum is σ = 432432483840. Its totient is φ = 27456015360.

The previous prime is 123123103307. The next prime is 123123103331. The reversal of 123123103320 is 23301321321.

It is a super-2 number, since 2×123123103320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1753062 + ... + 1821941.

It is an arithmetic number, because the mean of its divisors is an integer number (3378378780).

Almost surely, 2^123123103320 is an apocalyptic number.

123123103320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123123103320 is an abundant number, since it is smaller than the sum of its proper divisors (309309380520).

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

123123103320 is a wasteful number, since it uses less digits than its factorization.

123123103320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575065 (or 3575061 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123123103320 its reverse (23301321321), we get a palindrome (146424424641).

The spelling of 123123103320 in words is "one hundred twenty-three billion, one hundred twenty-three million, one hundred three thousand, three hundred twenty".