123011330020 has 48 divisors (see below), whose sum is σ = 267821568000. Its totient is φ = 47409298560.

The previous prime is 123011330003. The next prime is 123011330059. The reversal of 123011330020 is 20033110321.

It is a junction number, because it is equal to n+sod(n) for n = 123011329976 and 123011330003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291220 + ... + 575179.

It is an arithmetic number, because the mean of its divisors is an integer number (5579616000).

Almost surely, 2^123011330020 is an apocalyptic number.

123011330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123011330020 is an abundant number, since it is smaller than the sum of its proper divisors (144810237980).

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

123011330020 is a wasteful number, since it uses less digits than its factorization.

123011330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866668 (or 866666 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 123011330020 its reverse (20033110321), we get a palindrome (143044440341).

The spelling of 123011330020 in words is "one hundred twenty-three billion, eleven million, three hundred thirty thousand, twenty".