123000331020 has 96 divisors (see below), whose sum is σ = 394063638528. Its totient is φ = 28081320192.

The previous prime is 123000330997. The next prime is 123000331033. The reversal of 123000331020 is 20133000321.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 186597 + ... + 529923.

It is an arithmetic number, because the mean of its divisors is an integer number (4104829568).

Almost surely, 2^123000331020 is an apocalyptic number.

123000331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123000331020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197031819264).

123000331020 is an abundant number, since it is smaller than the sum of its proper divisors (271063307508).

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

123000331020 is a wasteful number, since it uses less digits than its factorization.

123000331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344199 (or 344197 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 123000331020 its reverse (20133000321), we get a palindrome (143133331341).

The spelling of 123000331020 in words is "one hundred twenty-three billion, three hundred thirty-one thousand, twenty".