13115371500 has 1152 divisors, whose sum is σ = 56514232320. Its totient is φ = 2566080000.

The previous prime is 13115371499. The next prime is 13115371501. The reversal of 13115371500 is 517351131.

13115371500 is a `hidden beast` number, since 1 + 3 + 1 + 153 + 7 + 1 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (13115371499) and next prime (13115371501).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13115371501) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 354469482 + ... + 354469518.

Almost surely, 2^13115371500 is an apocalyptic number.

13115371500 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 13115371500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28257116160).

13115371500 is an abundant number, since it is smaller than the sum of its proper divisors (43398860820).

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

13115371500 is a wasteful number, since it uses less digits than its factorization.

13115371500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The spelling of 13115371500 in words is "thirteen billion, one hundred fifteen million, three hundred seventy-one thousand, five hundred".