123250020 has 48 divisors (see below), whose sum is σ = 349272000. Its totient is φ = 32469376.

The previous prime is 123250009. The next prime is 123250021. The reversal of 123250020 is 20052321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (123250021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7395 + ... + 17354.

It is an arithmetic number, because the mean of its divisors is an integer number (7276500).

Almost surely, 2^123250020 is an apocalyptic number.

123250020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123250020 is an abundant number, since it is smaller than the sum of its proper divisors (226021980).

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

123250020 is a wasteful number, since it uses less digits than its factorization.

123250020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24844 (or 24842 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 123250020 is about 11101.8025563419. The cubic root of 123250020 is about 497.6557192063.

The spelling of 123250020 in words is "one hundred twenty-three million, two hundred fifty thousand, twenty".