100523430 has 80 divisors (see below), whose sum is σ = 308927520. Its totient is φ = 22975488.

The previous prime is 100523429. The next prime is 100523477. The reversal of 100523430 is 34325001.

100523430 is a `hidden beast` number, since 100 + 523 + 43 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3195 + ... + 14534.

It is an arithmetic number, because the mean of its divisors is an integer number (3861594).

Almost surely, 2^100523430 is an apocalyptic number.

100523430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100523430 is an abundant number, since it is smaller than the sum of its proper divisors (208404090).

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

100523430 is a wasteful number, since it uses less digits than its factorization.

100523430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17755 (or 17746 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 100523430 is about 10026.1373419677. The cubic root of 100523430 is about 464.9673234062.

Adding to 100523430 its reverse (34325001), we get a palindrome (134848431).

The spelling of 100523430 in words is "one hundred million, five hundred twenty-three thousand, four hundred thirty".