20312323206 has 32 divisors (see below), whose sum is σ = 46438321920. Its totient is φ = 5802251616.

The previous prime is 20312323181. The next prime is 20312323237. The reversal of 20312323206 is 60232321302.

It is a super-2 number, since 2×20312323206² (a number of 21 digits) contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150645 + ... + 251631.

It is an arithmetic number, because the mean of its divisors is an integer number (1451197560).

Almost surely, 2^20312323206 is an apocalyptic number.

20312323206 is an abundant number, since it is smaller than the sum of its proper divisors (26125998714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312323206 is a wasteful number, since it uses less digits than its factorization.

20312323206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105788.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20312323206 its reverse (60232321302), we get a palindrome (80544644508).

The spelling of 20312323206 in words is "twenty billion, three hundred twelve million, three hundred twenty-three thousand, two hundred six".