13103121528 has 96 divisors (see below), whose sum is σ = 42320678400. Its totient is φ = 3580974144.

The previous prime is 13103121481. The next prime is 13103121547. The reversal of 13103121528 is 82512130131.

13103121528 is a `hidden beast` number, since 1 + 3 + 10 + 3 + 121 + 528 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 553588 + ... + 576771.

It is an arithmetic number, because the mean of its divisors is an integer number (440840400).

Almost surely, 2^13103121528 is an apocalyptic number.

13103121528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13103121528 is an abundant number, since it is smaller than the sum of its proper divisors (29217556872).

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

13103121528 is a wasteful number, since it uses less digits than its factorization.

13103121528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130401 (or 1130394 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 13103121528 its reverse (82512130131), we get a palindrome (95615251659).

The spelling of 13103121528 in words is "thirteen billion, one hundred three million, one hundred twenty-one thousand, five hundred twenty-eight".