13500305412 has 36 divisors (see below), whose sum is σ = 34624753968. Its totient is φ = 4091001200.

The previous prime is 13500305411. The next prime is 13500305447. The reversal of 13500305412 is 21450300531.

It is not an unprimeable number, because it can be changed into a prime (13500305411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4647414 + ... + 4650317.

Almost surely, 2^13500305412 is an apocalyptic number.

13500305412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13500305412 is an abundant number, since it is smaller than the sum of its proper divisors (21124448556).

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

13500305412 is a wasteful number, since it uses less digits than its factorization.

13500305412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9297760 (or 9297747 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 13500305412 its reverse (21450300531), we get a palindrome (34950605943).

The spelling of 13500305412 in words is "thirteen billion, five hundred million, three hundred five thousand, four hundred twelve".