20230123312 has 40 divisors (see below), whose sum is σ = 45837034496. Its totient is φ = 8468421696.

The previous prime is 20230123279. The next prime is 20230123337. The reversal of 20230123312 is 21332103202.

It is a self number, because there is not a number n which added to its sum of digits gives 20230123312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095488 + ... + 2105119.

Almost surely, 2^20230123312 is an apocalyptic number.

It is an amenable number.

20230123312 is an abundant number, since it is smaller than the sum of its proper divisors (25606911184).

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

20230123312 is a wasteful number, since it uses less digits than its factorization.

20230123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200665 (or 4200659 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20230123312 its reverse (21332103202), we get a palindrome (41562226514).

The spelling of 20230123312 in words is "twenty billion, two hundred thirty million, one hundred twenty-three thousand, three hundred twelve".