12451308231 has 4 divisors (see below), whose sum is σ = 16601744312. Its totient is φ = 8300872152.

The previous prime is 12451308211. The next prime is 12451308241. The reversal of 12451308231 is 13280315421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12451308231 - 2⁹ = 12451307719 is a prime.

It is a super-2 number, since 2×12451308231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451308211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2075218036 + ... + 2075218041.

It is an arithmetic number, because the mean of its divisors is an integer number (4150436078).

Almost surely, 2^12451308231 is an apocalyptic number.

12451308231 is a deficient number, since it is larger than the sum of its proper divisors (4150436081).

12451308231 is an equidigital number, since it uses as much as digits as its factorization.

12451308231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150436080.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 12451308231 in words is "twelve billion, four hundred fifty-one million, three hundred eight thousand, two hundred thirty-one".