12431155451 has 16 divisors (see below), whose sum is σ = 14611204608. Its totient is φ = 10426903200.

The previous prime is 12431155439. The next prime is 12431155493. The reversal of 12431155451 is 15455113421.

It is a cyclic number.

It is not a de Polignac number, because 12431155451 - 2¹⁰ = 12431154427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12431145451) 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 15 ways as a sum of consecutive naturals, for example, 308036 + ... + 346046.

It is an arithmetic number, because the mean of its divisors is an integer number (913200288).

Almost surely, 2^12431155451 is an apocalyptic number.

12431155451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12431155451 is a deficient number, since it is larger than the sum of its proper divisors (2180049157).

12431155451 is a wasteful number, since it uses less digits than its factorization.

12431155451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40322.

The product of its digits is 12000, while the sum is 32.

Adding to 12431155451 its reverse (15455113421), we get a palindrome (27886268872).

The spelling of 12431155451 in words is "twelve billion, four hundred thirty-one million, one hundred fifty-five thousand, four hundred fifty-one".