123741020 has 24 divisors (see below), whose sum is σ = 279845664. Its totient is φ = 45688896.

The previous prime is 123741017. The next prime is 123741029. The reversal of 123741020 is 20147321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123740983 and 123741001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123741029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237704 + ... + 238223.

It is an arithmetic number, because the mean of its divisors is an integer number (11660236).

Almost surely, 2^123741020 is an apocalyptic number.

123741020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123741020 is an abundant number, since it is smaller than the sum of its proper divisors (156104644).

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

123741020 is a wasteful number, since it uses less digits than its factorization.

123741020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475949 (or 475947 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 123741020 is about 11123.8941023366. The cubic root of 123741020 is about 498.3156925880.

Adding to 123741020 its reverse (20147321), we get a palindrome (143888341).

The spelling of 123741020 in words is "one hundred twenty-three million, seven hundred forty-one thousand, twenty".