13500131534220 has 48 divisors (see below), whose sum is σ = 37811444277600. Its totient is φ = 3598980220416.

The previous prime is 13500131534213. The next prime is 13500131534257. The reversal of 13500131534220 is 2243513100531.

13500131534220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32757745 + ... + 33167304.

It is an arithmetic number, because the mean of its divisors is an integer number (787738422450).

Almost surely, 2^{13500131534220} is an apocalyptic number.

13500131534220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13500131534220 is an abundant number, since it is smaller than the sum of its proper divisors (24311312743380).

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

13500131534220 is a wasteful number, since it uses less digits than its factorization.

13500131534220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65928474 (or 65928472 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 13500131534220 its reverse (2243513100531), we get a palindrome (15743644634751).

The spelling of 13500131534220 in words is "thirteen trillion, five hundred billion, one hundred thirty-one million, five hundred thirty-four thousand, two hundred twenty".