20171130 has 32 divisors (see below), whose sum is σ = 55327104. Its totient is φ = 4610496.

The previous prime is 20171101. The next prime is 20171147. The reversal of 20171130 is 3117102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47817 + ... + 48236.

It is an arithmetic number, because the mean of its divisors is an integer number (1728972).

Almost surely, 2^20171130 is an apocalyptic number.

20171130 is an abundant number, since it is smaller than the sum of its proper divisors (35155974).

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

20171130 is a wasteful number, since it uses less digits than its factorization.

20171130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96070.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 20171130 is about 4491.2281171190. The cubic root of 20171130 is about 272.2137611019.

Adding to 20171130 its reverse (3117102), we get a palindrome (23288232).

It can be divided in two parts, 20171 and 130, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 20171130 in words is "twenty million, one hundred seventy-one thousand, one hundred thirty".