20323223132 has 12 divisors (see below), whose sum is σ = 35571421200. Its totient is φ = 10159959936.

The previous prime is 20323223101. The next prime is 20323223143. The reversal of 20323223132 is 23132232302.

It is a junction number, because it is equal to n+sod(n) for n = 20323223098 and 20323223107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385013 + ... + 434604.

It is an arithmetic number, because the mean of its divisors is an integer number (2964285100).

Almost surely, 2^20323223132 is an apocalyptic number.

It is an amenable number.

20323223132 is a deficient number, since it is larger than the sum of its proper divisors (15248198068).

20323223132 is a wasteful number, since it uses less digits than its factorization.

20323223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825820 (or 825818 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20323223132 its reverse (23132232302), we get a palindrome (43455455434).

The spelling of 20323223132 in words is "twenty billion, three hundred twenty-three million, two hundred twenty-three thousand, one hundred thirty-two".