18014196331 has 4 divisors (see below), whose sum is σ = 18397477152. Its totient is φ = 17630915512.

The previous prime is 18014196329. The next prime is 18014196391. The reversal of 18014196331 is 13369141081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13369141081 = 179 ⋅74687939.

It is a cyclic number.

It is not a de Polignac number, because 18014196331 - 2¹ = 18014196329 is a prime.

It is a super-2 number, since 2×18014196331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18014196301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191640340 + ... + 191640433.

It is an arithmetic number, because the mean of its divisors is an integer number (4599369288).

Almost surely, 2^18014196331 is an apocalyptic number.

18014196331 is a deficient number, since it is larger than the sum of its proper divisors (383280821).

18014196331 is an equidigital number, since it uses as much as digits as its factorization.

18014196331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383280820.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 18014196331 in words is "eighteen billion, fourteen million, one hundred ninety-six thousand, three hundred thirty-one".