20200120312 has 16 divisors (see below), whose sum is σ = 37893615840. Its totient is φ = 10095156096.

The previous prime is 20200120279. The next prime is 20200120333. The reversal of 20200120312 is 21302100202.

It is a junction number, because it is equal to n+sod(n) for n = 20200120292 and 20200120301.

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, 595473 + ... + 628480.

It is an arithmetic number, because the mean of its divisors is an integer number (2368350990).

Almost surely, 2^20200120312 is an apocalyptic number.

It is an amenable number.

20200120312 is a deficient number, since it is larger than the sum of its proper divisors (17693495528).

20200120312 is a wasteful number, since it uses less digits than its factorization.

20200120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226022 (or 1226018 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20200120312 its reverse (21302100202), we get a palindrome (41502220514).

The spelling of 20200120312 in words is "twenty billion, two hundred million, one hundred twenty thousand, three hundred twelve".