20023120312 has 16 divisors (see below), whose sum is σ = 40431300840. Its totient is φ = 9241440096.

The previous prime is 20023120291. The next prime is 20023120361. The reversal of 20023120312 is 21302132002.

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, 96264898 + ... + 96265105.

Almost surely, 2^20023120312 is an apocalyptic number.

It is an amenable number.

20023120312 is an abundant number, since it is smaller than the sum of its proper divisors (20408180528).

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

20023120312 is a wasteful number, since it uses less digits than its factorization.

20023120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192530022 (or 192530018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20023120312 its reverse (21302132002), we get a palindrome (41325252314).

The spelling of 20023120312 in words is "twenty billion, twenty-three million, one hundred twenty thousand, three hundred twelve".