18030117811 has 8 divisors (see below), whose sum is σ = 19441976400. Its totient is φ = 16664549760.

The previous prime is 18030117739. The next prime is 18030117817. The reversal of 18030117811 is 11871103081.

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

It is a cyclic number.

It is not a de Polignac number, because 18030117811 - 2⁷ = 18030117683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18030117817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11571826 + ... + 11573383.

It is an arithmetic number, because the mean of its divisors is an integer number (2430247050).

Almost surely, 2^18030117811 is an apocalyptic number.

18030117811 is a deficient number, since it is larger than the sum of its proper divisors (1411858589).

18030117811 is a wasteful number, since it uses less digits than its factorization.

18030117811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23145269.

The product of its (nonzero) digits is 1344, while the sum is 31.

The spelling of 18030117811 in words is "eighteen billion, thirty million, one hundred seventeen thousand, eight hundred eleven".