12312021100312 has 8 divisors (see below), whose sum is σ = 23085039563100. Its totient is φ = 6156010550152.

The previous prime is 12312021100271. The next prime is 12312021100319. The reversal of 12312021100312 is 21300112021321.

12312021100312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×12312021100312² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12312021100312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312021100319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769501318762 + ... + 769501318777.

Almost surely, 2^{12312021100312} is an apocalyptic number.

It is an amenable number.

12312021100312 is a deficient number, since it is larger than the sum of its proper divisors (10773018462788).

12312021100312 is a wasteful number, since it uses less digits than its factorization.

12312021100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539002637545 (or 1539002637541 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12312021100312 its reverse (21300112021321), we get a palindrome (33612133121633).

The spelling of 12312021100312 in words is "twelve trillion, three hundred twelve billion, twenty-one million, one hundred thousand, three hundred twelve".