123130022220 has 72 divisors (see below), whose sum is σ = 373554299664. Its totient is φ = 32829406848.

The previous prime is 123130022207. The next prime is 123130022303. The reversal of 123130022220 is 22220031321.

123130022220 is a `hidden beast` number, since 123 + 1 + 300 + 22 + 220 = 666.

123130022220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123130022220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123130022193 and 123130022202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1143127 + ... + 1246193.

It is an arithmetic number, because the mean of its divisors is an integer number (5188254162).

Almost surely, 2^123130022220 is an apocalyptic number.

123130022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123130022220 is an abundant number, since it is smaller than the sum of its proper divisors (250424277444).

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

123130022220 is a wasteful number, since it uses less digits than its factorization.

123130022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109719 (or 109714 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 123130022220 its reverse (22220031321), we get a palindrome (145350053541).

The spelling of 123130022220 in words is "one hundred twenty-three billion, one hundred thirty million, twenty-two thousand, two hundred twenty".