20211112312 has 8 divisors (see below), whose sum is σ = 37895835600. Its totient is φ = 10105556152.

The previous prime is 20211112309. The next prime is 20211112321. The reversal of 20211112312 is 21321111202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263194512 + ... + 1263194527.

It is an arithmetic number, because the mean of its divisors is an integer number (4736979450).

Almost surely, 2^20211112312 is an apocalyptic number.

It is an amenable number.

20211112312 is a deficient number, since it is larger than the sum of its proper divisors (17684723288).

20211112312 is a wasteful number, since it uses less digits than its factorization.

20211112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526389045 (or 2526389041 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20211112312 its reverse (21321111202), we get a palindrome (41532223514).

The spelling of 20211112312 in words is "twenty billion, two hundred eleven million, one hundred twelve thousand, three hundred twelve".