12312403234412 has 12 divisors (see below), whose sum is σ = 21552186915336. Its totient is φ = 6154635544320.

The previous prime is 12312403234409. The next prime is 12312403234423. The reversal of 12312403234412 is 21443230421321.

It is a happy 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, 391500533 + ... + 391531980.

It is an arithmetic number, because the mean of its divisors is an integer number (1796015576278).

Almost surely, 2^{12312403234412} is an apocalyptic number.

It is an amenable number.

12312403234412 is a deficient number, since it is larger than the sum of its proper divisors (9239783680924).

12312403234412 is a wasteful number, since it uses less digits than its factorization.

12312403234412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783036448 (or 783036446 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 12312403234412 its reverse (21443230421321), we get a palindrome (33755633655733).

The spelling of 12312403234412 in words is "twelve trillion, three hundred twelve billion, four hundred three million, two hundred thirty-four thousand, four hundred twelve".