10131200520 has 256 divisors, whose sum is σ = 37745049600. Its totient is φ = 2122951680.

The previous prime is 10131200509. The next prime is 10131200533. The reversal of 10131200520 is 2500213101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10131200520.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 484522 + ... + 504998.

It is an arithmetic number, because the mean of its divisors is an integer number (147441600).

Almost surely, 2^10131200520 is an apocalyptic number.

10131200520 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 10131200520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18872524800).

10131200520 is an abundant number, since it is smaller than the sum of its proper divisors (27613849080).

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

10131200520 is a wasteful number, since it uses less digits than its factorization.

10131200520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20548 (or 20544 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 10131200520 its reverse (2500213101), we get a palindrome (12631413621).

The spelling of 10131200520 in words is "ten billion, one hundred thirty-one million, two hundred thousand, five hundred twenty".