213100031303 has 16 divisors (see below), whose sum is σ = 228774580416. Its totient is φ = 197775452160.

The previous prime is 213100031281. The next prime is 213100031321. The reversal of 213100031303 is 303130001312.

213100031303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213100031303 - 2¹⁰ = 213100030279 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213100031363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6923075 + ... + 6953787.

It is an arithmetic number, because the mean of its divisors is an integer number (14298411276).

Almost surely, 2^213100031303 is an apocalyptic number.

213100031303 is a deficient number, since it is larger than the sum of its proper divisors (15674549113).

213100031303 is a wasteful number, since it uses less digits than its factorization.

213100031303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36394.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 213100031303 its reverse (303130001312), we get a palindrome (516230032615).

The spelling of 213100031303 in words is "two hundred thirteen billion, one hundred million, thirty-one thousand, three hundred three".