13115325510 has 384 divisors, whose sum is σ = 42620497920. Its totient is φ = 2731615488.

The previous prime is 13115325499. The next prime is 13115325539. The reversal of 13115325510 is 1552351131.

13115325510 is a `hidden beast` number, since 1 + 3 + 115 + 32 + 5 + 510 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 42720777 + ... + 42721083.

It is an arithmetic number, because the mean of its divisors is an integer number (110990880).

Almost surely, 2^13115325510 is an apocalyptic number.

13115325510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13115325510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21310248960).

13115325510 is an abundant number, since it is smaller than the sum of its proper divisors (29505172410).

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

13115325510 is a wasteful number, since it uses less digits than its factorization.

13115325510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 13115325510 its reverse (1552351131), we get a palindrome (14667676641).

The spelling of 13115325510 in words is "thirteen billion, one hundred fifteen million, three hundred twenty-five thousand, five hundred ten".