20201092018 has 8 divisors (see below), whose sum is σ = 30642106140. Its totient is φ = 9987056640.

The previous prime is 20201092013. The next prime is 20201092019. The reversal of 20201092018 is 81029010202.

It can be written as a sum of positive squares in 2 ways, for example, as 20194399449 + 6692569 = 142107^2 + 2587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20201091983 and 20201092001.

It is not an unprimeable number, because it can be changed into a prime (20201092013) 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, 56744463 + ... + 56744818.

Almost surely, 2^20201092018 is an apocalyptic number.

20201092018 is a deficient number, since it is larger than the sum of its proper divisors (10441014122).

20201092018 is a wasteful number, since it uses less digits than its factorization.

20201092018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113489372.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 20201092018 in words is "twenty billion, two hundred one million, ninety-two thousand, eighteen".