2018019231 has 16 divisors (see below), whose sum is σ = 2997561600. Its totient is φ = 1341789624.

The previous prime is 2018019217. The next prime is 2018019233. The reversal of 2018019231 is 1329108102.

2018019231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2018019231 - 2⁹ = 2018018719 is a prime.

It is a super-2 number, since 2×2018019231² = 8144803233371662722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2018019195 and 2018019204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018019233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88371 + ... + 108836.

It is an arithmetic number, because the mean of its divisors is an integer number (187347600).

Almost surely, 2^2018019231 is an apocalyptic number.

2018019231 is a deficient number, since it is larger than the sum of its proper divisors (979542369).

2018019231 is a wasteful number, since it uses less digits than its factorization.

2018019231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197595 (or 197589 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2018019231 is about 44922.3689379801. The cubic root of 2018019231 is about 1263.6935443085.

The spelling of 2018019231 in words is "two billion, eighteen million, nineteen thousand, two hundred thirty-one".