20102320232 has 16 divisors (see below), whose sum is σ = 37703464800. Its totient is φ = 10048062960.

The previous prime is 20102320219. The next prime is 20102320237. The reversal of 20102320232 is 23202320102.

It is a self number, because there is not a number n which added to its sum of digits gives 20102320232.

It is not an unprimeable number, because it can be changed into a prime (20102320237) 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 3 ways as a sum of consecutive naturals, for example, 359444 + ... + 411587.

It is an arithmetic number, because the mean of its divisors is an integer number (2356466550).

Almost surely, 2^20102320232 is an apocalyptic number.

It is an amenable number.

20102320232 is a deficient number, since it is larger than the sum of its proper divisors (17601144568).

20102320232 is a wasteful number, since it uses less digits than its factorization.

20102320232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774296 (or 774292 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20102320232 its reverse (23202320102), we get a palindrome (43304640334).

The spelling of 20102320232 in words is "twenty billion, one hundred two million, three hundred twenty thousand, two hundred thirty-two".