20121314312 has 16 divisors (see below), whose sum is σ = 41157234000. Its totient is φ = 9146051920.

The previous prime is 20121314309. The next prime is 20121314327. The reversal of 20121314312 is 21341312102.

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, 114325562 + ... + 114325737.

It is an arithmetic number, because the mean of its divisors is an integer number (2572327125).

Almost surely, 2^20121314312 is an apocalyptic number.

20121314312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20121314312 is an abundant number, since it is smaller than the sum of its proper divisors (21035919688).

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

20121314312 is a wasteful number, since it uses less digits than its factorization.

20121314312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228651316 (or 228651312 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20121314312 its reverse (21341312102), we get a palindrome (41462626414).

It can be divided in two parts, 20121 and 314312, that added together give a palindrome (334433).

The spelling of 20121314312 in words is "twenty billion, one hundred twenty-one million, three hundred fourteen thousand, three hundred twelve".