123021116 has 12 divisors (see below), whose sum is σ = 216836760. Its totient is φ = 61067760.

The previous prime is 123021097. The next prime is 123021121. The reversal of 123021116 is 611120321.

It is a junction number, because it is equal to n+sod(n) for n = 123021094 and 123021103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110075 + ... + 111186.

It is an arithmetic number, because the mean of its divisors is an integer number (18069730).

Almost surely, 2^123021116 is an apocalyptic number.

It is an amenable number.

123021116 is a deficient number, since it is larger than the sum of its proper divisors (93815644).

123021116 is a wasteful number, since it uses less digits than its factorization.

123021116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221404 (or 221402 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 123021116 is about 11091.4884483553. The cubic root of 123021116 is about 497.3474407436.

Adding to 123021116 its reverse (611120321), we get a palindrome (734141437).

The spelling of 123021116 in words is "one hundred twenty-three million, twenty-one thousand, one hundred sixteen".