213110331 has 8 divisors (see below), whose sum is σ = 324739584. Its totient is φ = 121777320.

The previous prime is 213110291. The next prime is 213110347. The reversal of 213110331 is 133011312.

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

It is not a de Polignac number, because 213110331 - 2¹³ = 213102139 is a prime.

It is a super-2 number, since 2×213110331² = 90832026357859122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213110331.

It is not an unprimeable number, because it can be changed into a prime (213100331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5074035 + ... + 5074076.

It is an arithmetic number, because the mean of its divisors is an integer number (40592448).

Almost surely, 2^213110331 is an apocalyptic number.

213110331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213110331 is a deficient number, since it is larger than the sum of its proper divisors (111629253).

213110331 is a wasteful number, since it uses less digits than its factorization.

213110331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148121.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 213110331 is about 14598.2989077495. The cubic root of 213110331 is about 597.3123595124.

Adding to 213110331 its reverse (133011312), we get a palindrome (346121643).

The spelling of 213110331 in words is "two hundred thirteen million, one hundred ten thousand, three hundred thirty-one".