13500003020 has 48 divisors (see below), whose sum is σ = 32442838848. Its totient is φ = 4622453760.

The previous prime is 13500003001. The next prime is 13500003031. The reversal of 13500003020 is 2030000531.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 13500002986 and 13500003004.

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, 43184 + ... + 169896.

It is an arithmetic number, because the mean of its divisors is an integer number (675892476).

Almost surely, 2^13500003020 is an apocalyptic number.

13500003020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13500003020 is an abundant number, since it is smaller than the sum of its proper divisors (18942835828).

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

13500003020 is a wasteful number, since it uses less digits than its factorization.

13500003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127490 (or 127488 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

Adding to 13500003020 its reverse (2030000531), we get a palindrome (15530003551).

The spelling of 13500003020 in words is "thirteen billion, five hundred million, three thousand, twenty".