123123203020300 has 144 divisors (see below), whose sum is σ = 307160434904512. Its totient is φ = 41963094835200.

The previous prime is 123123203020283. The next prime is 123123203020313. The reversal of 123123203020300 is 3020302321321.

It is a super-2 number, since 2×123123203020300² (a number of 29 digits) contains 22 as substring.

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, 178122154 + ... + 178812046.

Almost surely, 2^{123123203020300} is an apocalyptic number.

123123203020300 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 123123203020300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153580217452256).

123123203020300 is an abundant number, since it is smaller than the sum of its proper divisors (184037231884212).

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

123123203020300 is a wasteful number, since it uses less digits than its factorization.

123123203020300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691428 (or 691421 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123123203020300 its reverse (3020302321321), we get a palindrome (126143505341621).

The spelling of 123123203020300 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred three million, twenty thousand, three hundred".