123858265220 has 24 divisors (see below), whose sum is σ = 260135502144. Its totient is φ = 49536992736.

The previous prime is 123858265213. The next prime is 123858265231. The reversal of 123858265220 is 22562858321.

123858265220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232082 + ... + 549161.

It is an arithmetic number, because the mean of its divisors is an integer number (10838979256).

Almost surely, 2^123858265220 is an apocalyptic number.

123858265220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123858265220 is an abundant number, since it is smaller than the sum of its proper divisors (136277236924).

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

123858265220 is a wasteful number, since it uses less digits than its factorization.

123858265220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789179 (or 789177 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 123858265220 in words is "one hundred twenty-three billion, eight hundred fifty-eight million, two hundred sixty-five thousand, two hundred twenty".