20311232224 has 48 divisors (see below), whose sum is σ = 40203163728. Its totient is φ = 10101030912.

The previous prime is 20311232213. The next prime is 20311232231. The reversal of 20311232224 is 42223211302.

It is a junction number, because it is equal to n+sod(n) for n = 20311232195 and 20311232204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7260394 + ... + 7263190.

It is an arithmetic number, because the mean of its divisors is an integer number (837565911).

Almost surely, 2^20311232224 is an apocalyptic number.

It is an amenable number.

20311232224 is a deficient number, since it is larger than the sum of its proper divisors (19891931504).

20311232224 is a wasteful number, since it uses less digits than its factorization.

20311232224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20311232224 its reverse (42223211302), we get a palindrome (62534443526).

The spelling of 20311232224 in words is "twenty billion, three hundred eleven million, two hundred thirty-two thousand, two hundred twenty-four".