20123214112 has 12 divisors (see below), whose sum is σ = 39617577846. Its totient is φ = 10061607040.

The previous prime is 20123214101. The next prime is 20123214131. The reversal of 20123214112 is 21141232102.

It can be written as a sum of positive squares in only one way, i.e., 19735754256 + 387459856 = 140484^2 + 19684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20123214112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314425189 + ... + 314425252.

Almost surely, 2^20123214112 is an apocalyptic number.

It is an amenable number.

20123214112 is a deficient number, since it is larger than the sum of its proper divisors (19494363734).

20123214112 is an equidigital number, since it uses as much as digits as its factorization.

20123214112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628850451 (or 628850443 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20123214112 its reverse (21141232102), we get a palindrome (41264446214).

The spelling of 20123214112 in words is "twenty billion, one hundred twenty-three million, two hundred fourteen thousand, one hundred twelve".