21310130182 has 8 divisors (see below), whose sum is σ = 34871122152. Its totient is φ = 9686422800.

The previous prime is 21310130161. The next prime is 21310130183. The reversal of 21310130182 is 28103101312.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 968642281 = 21310130182 / (2 + 1 + 3 + 1 + 0 + 1 + 3 + 0 + 1 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310130183) 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, 484321119 + ... + 484321162.

It is an arithmetic number, because the mean of its divisors is an integer number (4358890269).

Almost surely, 2^21310130182 is an apocalyptic number.

21310130182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21310130182 is a deficient number, since it is larger than the sum of its proper divisors (13560991970).

21310130182 is a wasteful number, since it uses less digits than its factorization.

21310130182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968642294.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21310130182 its reverse (28103101312), we get a palindrome (49413231494).

The spelling of 21310130182 in words is "twenty-one billion, three hundred ten million, one hundred thirty thousand, one hundred eighty-two".