123520516 has 12 divisors (see below), whose sum is σ = 247041088. Its totient is φ = 52937352.

The previous prime is 123520499. The next prime is 123520531. The reversal of 123520516 is 615025321.

123520516 is an admirable 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, 2205696 + ... + 2205751.

Almost surely, 2^123520516 is an apocalyptic number.

It is an amenable number.

123520516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123520516 is a wasteful number, since it uses less digits than its factorization.

123520516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411458 (or 4411456 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 123520516 is about 11113.9784055936. The cubic root of 123520516 is about 498.0195204254.

Adding to 123520516 its reverse (615025321), we get a palindrome (738545837).

The spelling of 123520516 in words is "one hundred twenty-three million, five hundred twenty thousand, five hundred sixteen".