123622120 has 32 divisors (see below), whose sum is σ = 278656200. Its totient is φ = 49358848.

The previous prime is 123622091. The next prime is 123622127. The reversal of 123622120 is 21226321.

It can be written as a sum of positive squares in 4 ways, for example, as 61873956 + 61748164 = 7866^2 + 7858^2 .

It is not an unprimeable number, because it can be changed into a prime (123622127) 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, 22176 + ... + 27184.

Almost surely, 2^123622120 is an apocalyptic number.

123622120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123622120 is an abundant number, since it is smaller than the sum of its proper divisors (155034080).

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

123622120 is a wasteful number, since it uses less digits than its factorization.

123622120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637 (or 5633 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 123622120 is about 11118.5484664141. The cubic root of 123622120 is about 498.1560346098.

Adding to 123622120 its reverse (21226321), we get a palindrome (144848441).

The spelling of 123622120 in words is "one hundred twenty-three million, six hundred twenty-two thousand, one hundred twenty".