13818182120 has 32 divisors (see below), whose sum is σ = 31100214600. Its totient is φ = 5525618688.

The previous prime is 13818182113. The next prime is 13818182137. The reversal of 13818182120 is 2128181831.

It can be written as a sum of positive squares in 4 ways, for example, as 2071524196 + 11746657924 = 45514^2 + 108382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88316 + ... + 188244.

Almost surely, 2^13818182120 is an apocalyptic number.

13818182120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13818182120 is an abundant number, since it is smaller than the sum of its proper divisors (17282032480).

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

13818182120 is a wasteful number, since it uses less digits than its factorization.

13818182120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103397 (or 103393 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 35.

The spelling of 13818182120 in words is "thirteen billion, eight hundred eighteen million, one hundred eighty-two thousand, one hundred twenty".