103312504520 has 32 divisors (see below), whose sum is σ = 232479158400. Its totient is φ = 41320375488.

The previous prime is 103312504513. The next prime is 103312504523. The reversal of 103312504520 is 25405213301.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 103312504520.

It is not an unprimeable number, because it can be changed into a prime (103312504523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 229121 + ... + 509039.

It is an arithmetic number, because the mean of its divisors is an integer number (7264973700).

Almost surely, 2^103312504520 is an apocalyptic number.

103312504520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103312504520 is an abundant number, since it is smaller than the sum of its proper divisors (129166653880).

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

103312504520 is a wasteful number, since it uses less digits than its factorization.

103312504520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289157 (or 289153 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 103312504520 its reverse (25405213301), we get a palindrome (128717717821).

The spelling of 103312504520 in words is "one hundred three billion, three hundred twelve million, five hundred four thousand, five hundred twenty".