12256322723 has 8 divisors (see below), whose sum is σ = 13201425600. Its totient is φ = 11341223208.

The previous prime is 12256322717. The next prime is 12256322747. The reversal of 12256322723 is 32722365221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12256322723 - 2¹⁶ = 12256257187 is a prime.

It is a super-2 number, since 2×12256322723² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12256322753) 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, 7499993 + ... + 7501626.

It is an arithmetic number, because the mean of its divisors is an integer number (1650178200).

Almost surely, 2^12256322723 is an apocalyptic number.

12256322723 is a deficient number, since it is larger than the sum of its proper divisors (945102877).

12256322723 is a wasteful number, since it uses less digits than its factorization.

12256322723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001681.

The product of its digits is 60480, while the sum is 35.

Adding to 12256322723 its reverse (32722365221), we get a palindrome (44978687944).

The spelling of 12256322723 in words is "twelve billion, two hundred fifty-six million, three hundred twenty-two thousand, seven hundred twenty-three".