206331321046 has 64 divisors (see below), whose sum is σ = 338104811520. Its totient is φ = 94144770720.

The previous prime is 206331321043. The next prime is 206331321071. The reversal of 206331321046 is 640123133602.

It is a super-2 number, since 2×206331321046² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 206331320999 and 206331321017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206331321041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119750341 + ... + 119752063.

It is an arithmetic number, because the mean of its divisors is an integer number (5282887680).

Almost surely, 2^206331321046 is an apocalyptic number.

206331321046 is a deficient number, since it is larger than the sum of its proper divisors (131773490474).

206331321046 is a wasteful number, since it uses less digits than its factorization.

206331321046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 206331321046 its reverse (640123133602), we get a palindrome (846454454648).

The spelling of 206331321046 in words is "two hundred six billion, three hundred thirty-one million, three hundred twenty-one thousand, forty-six".