13415123500 has 24 divisors (see below), whose sum is σ = 29298630816. Its totient is φ = 5366049200.

The previous prime is 13415123483. The next prime is 13415123503. The reversal of 13415123500 is 532151431.

It is a happy number.

13415123500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (13415123503) 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 7 ways as a sum of consecutive naturals, for example, 13414624 + ... + 13415623.

It is an arithmetic number, because the mean of its divisors is an integer number (1220776284).

Almost surely, 2^13415123500 is an apocalyptic number.

13415123500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13415123500 is an abundant number, since it is smaller than the sum of its proper divisors (15883507316).

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

13415123500 is a wasteful number, since it uses less digits than its factorization.

13415123500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26830266 (or 26830254 counting only the distinct ones).

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

Adding to 13415123500 its reverse (532151431), we get a palindrome (13947274931).

The spelling of 13415123500 in words is "thirteen billion, four hundred fifteen million, one hundred twenty-three thousand, five hundred".