123768020 has 12 divisors (see below), whose sum is σ = 259912884. Its totient is φ = 49507200.

The previous prime is 123768011. The next prime is 123768059. The reversal of 123768020 is 20867321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 88887184 = 5906^2 + 9428^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3094181 + ... + 3094220.

It is an arithmetic number, because the mean of its divisors is an integer number (21659407).

Almost surely, 2^123768020 is an apocalyptic number.

123768020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123768020 is an abundant number, since it is smaller than the sum of its proper divisors (136144864).

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

123768020 is a wasteful number, since it uses less digits than its factorization.

123768020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188410 (or 6188408 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 123768020 is about 11125.1076399287. The cubic root of 123768020 is about 498.3519337236.

The spelling of 123768020 in words is "one hundred twenty-three million, seven hundred sixty-eight thousand, twenty".