213103311 has 8 divisors (see below), whose sum is σ = 290183424. Its totient is φ = 139046040.

The previous prime is 213103309. The next prime is 213103327. The reversal of 213103311 is 113301312.

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

It is not a de Polignac number, because 213103311 - 2¹ = 213103309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213103361) 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, 755545 + ... + 755826.

It is an arithmetic number, because the mean of its divisors is an integer number (36272928).

Almost surely, 2^213103311 is an apocalyptic number.

213103311 is a deficient number, since it is larger than the sum of its proper divisors (77080113).

213103311 is a wasteful number, since it uses less digits than its factorization.

213103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511421.

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

The square root of 213103311 is about 14598.0584667962. The cubic root of 213103311 is about 597.3058008146.

Adding to 213103311 its reverse (113301312), we get a palindrome (326404623).

The spelling of 213103311 in words is "two hundred thirteen million, one hundred three thousand, three hundred eleven".