123020544 has 36 divisors (see below), whose sum is σ = 327416096. Its totient is φ = 41006592.

The previous prime is 123020543. The next prime is 123020563. The reversal of 123020544 is 445020321.

It is a super-3 number, since 3×123020544³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123020544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79324 + ... + 80859.

Almost surely, 2^123020544 is an apocalyptic number.

It is an amenable number.

123020544 is an abundant number, since it is smaller than the sum of its proper divisors (204395552).

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

123020544 is an equidigital number, since it uses as much as digits as its factorization.

123020544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160202 (or 160188 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 123020544 is about 11091.4626627871. The cubic root of 123020544 is about 497.3466699188.

Adding to 123020544 its reverse (445020321), we get a palindrome (568040865).

The spelling of 123020544 in words is "one hundred twenty-three million, twenty thousand, five hundred forty-four".