103513124520 has 192 divisors, whose sum is σ = 363110202000. Its totient is φ = 25422888960.

The previous prime is 103513124497. The next prime is 103513124549. The reversal of 103513124520 is 25421315301.

103513124520 is a `hidden beast` number, since 1 + 0 + 3 + 5 + 13 + 124 + 520 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 21227907204 + 82285217316 = 145698^2 + 286854^2 .

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 47 ways as a sum of consecutive naturals, for example, 2076690 + ... + 2125950.

Almost surely, 2^103513124520 is an apocalyptic number.

103513124520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103513124520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181555101000).

103513124520 is an abundant number, since it is smaller than the sum of its proper divisors (259597077480).

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

103513124520 is a wasteful number, since it uses less digits than its factorization.

103513124520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49740 (or 49733 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 103513124520 its reverse (25421315301), we get a palindrome (128934439821).

The spelling of 103513124520 in words is "one hundred three billion, five hundred thirteen million, one hundred twenty-four thousand, five hundred twenty".