523120100 has 36 divisors (see below), whose sum is σ = 1137080868. Its totient is φ = 208896000.

The previous prime is 523120063. The next prime is 523120109. The reversal of 523120100 is 1021325.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 357604 + 522762496 = 598^2 + 22864^2 .

It is not an unprimeable number, because it can be changed into a prime (523120109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60020 + ... + 68180.

Almost surely, 2^523120100 is an apocalyptic number.

523120100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

523120100 is an abundant number, since it is smaller than the sum of its proper divisors (613960768).

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

523120100 is a wasteful number, since it uses less digits than its factorization.

523120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8816 (or 8809 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 523120100 is about 22871.8189044947. The cubic root of 523120100 is about 805.7502874625.

Adding to 523120100 its reverse (1021325), we get a palindrome (524141425).

The spelling of 523120100 in words is "five hundred twenty-three million, one hundred twenty thousand, one hundred".