206431135210 has 32 divisors (see below), whose sum is σ = 396490685760. Its totient is φ = 77154933888.

The previous prime is 206431135199. The next prime is 206431135223. The reversal of 206431135210 is 12531134602.

It is a super-2 number, since 2×206431135210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 7427772 + ... + 7455511.

It is an arithmetic number, because the mean of its divisors is an integer number (12390333930).

Almost surely, 2^206431135210 is an apocalyptic number.

206431135210 is a deficient number, since it is larger than the sum of its proper divisors (190059550550).

206431135210 is a wasteful number, since it uses less digits than its factorization.

206431135210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14883382.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 206431135210 its reverse (12531134602), we get a palindrome (218962269812).

The spelling of 206431135210 in words is "two hundred six billion, four hundred thirty-one million, one hundred thirty-five thousand, two hundred ten".