123303120220 has 24 divisors (see below), whose sum is σ = 295927488864. Its totient is φ = 42275355456.

The previous prime is 123303120203. The next prime is 123303120277. The reversal of 123303120220 is 22021303321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440368147 + ... + 440368426.

It is an arithmetic number, because the mean of its divisors is an integer number (12330312036).

Almost surely, 2^123303120220 is an apocalyptic number.

123303120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123303120220 is an abundant number, since it is smaller than the sum of its proper divisors (172624368644).

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

123303120220 is a wasteful number, since it uses less digits than its factorization.

123303120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880736589 (or 880736587 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123303120220 its reverse (22021303321), we get a palindrome (145324423541).

The spelling of 123303120220 in words is "one hundred twenty-three billion, three hundred three million, one hundred twenty thousand, two hundred twenty".