12356454031 has 4 divisors (see below), whose sum is σ = 12359272464. Its totient is φ = 12353635600.

The previous prime is 12356454001. The next prime is 12356454037. The reversal of 12356454031 is 13045465321.

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

It is a cyclic number.

It is not a de Polignac number, because 12356454031 - 2¹¹ = 12356451983 is a prime.

It is a super-2 number, since 2×12356454031² (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 (12356454037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1402630 + ... + 1411411.

It is an arithmetic number, because the mean of its divisors is an integer number (3089818116).

Almost surely, 2^12356454031 is an apocalyptic number.

12356454031 is a deficient number, since it is larger than the sum of its proper divisors (2818433).

12356454031 is an equidigital number, since it uses as much as digits as its factorization.

12356454031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818432.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 12356454031 in words is "twelve billion, three hundred fifty-six million, four hundred fifty-four thousand, thirty-one".