12312301408 has 48 divisors (see below), whose sum is σ = 27998977104. Its totient is φ = 5267292160.

The previous prime is 12312301301. The next prime is 12312301409. The reversal of 12312301408 is 80410321321.

It is a happy number.

It is a super-2 number, since 2×12312301408² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312301409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022785 + ... + 1034752.

It is an arithmetic number, because the mean of its divisors is an integer number (583312023).

Almost surely, 2^12312301408 is an apocalyptic number.

It is an amenable number.

12312301408 is an abundant number, since it is smaller than the sum of its proper divisors (15686675696).

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

12312301408 is a wasteful number, since it uses less digits than its factorization.

12312301408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057575 (or 2057567 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 12312301408 its reverse (80410321321), we get a palindrome (92722622729).

The spelling of 12312301408 in words is "twelve billion, three hundred twelve million, three hundred one thousand, four hundred eight".