206231213315 has 16 divisors (see below), whose sum is σ = 262062501120. Its totient is φ = 155365601760.

The previous prime is 206231213311. The next prime is 206231213317. The reversal of 206231213315 is 513312132602.

It is a happy number.

It is not a de Polignac number, because 206231213315 - 2² = 206231213311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206231213311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6483701 + ... + 6515430.

It is an arithmetic number, because the mean of its divisors is an integer number (16378906320).

Almost surely, 2^206231213315 is an apocalyptic number.

206231213315 is a deficient number, since it is larger than the sum of its proper divisors (55831287805).

206231213315 is a wasteful number, since it uses less digits than its factorization.

206231213315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12999322.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 206231213315 its reverse (513312132602), we get a palindrome (719543345917).

The spelling of 206231213315 in words is "two hundred six billion, two hundred thirty-one million, two hundred thirteen thousand, three hundred fifteen".