123116620 has 48 divisors (see below), whose sum is σ = 282810528. Its totient is φ = 44648960.

The previous prime is 123116597. The next prime is 123116647. The reversal of 123116620 is 26611321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123116591 and 123116600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143232 + ... + 144088.

It is an arithmetic number, because the mean of its divisors is an integer number (5891886).

Almost surely, 2^123116620 is an apocalyptic number.

123116620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123116620 is an abundant number, since it is smaller than the sum of its proper divisors (159693908).

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

123116620 is a wasteful number, since it uses less digits than its factorization.

123116620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 123116620 is about 11095.7928964090. The cubic root of 123116620 is about 497.4761080418.

Adding to 123116620 its reverse (26611321), we get a palindrome (149727941).

The spelling of 123116620 in words is "one hundred twenty-three million, one hundred sixteen thousand, six hundred twenty".