1232143464454 has 16 divisors (see below), whose sum is σ = 2143771999488. Its totient is φ = 520179969672.

The previous prime is 1232143464451. The next prime is 1232143464527. The reversal of 1232143464454 is 4544643412321.

It is a self number, because there is not a number n which added to its sum of digits gives 1232143464454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232143464451) 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 7 ways as a sum of consecutive naturals, for example, 656791954 + ... + 656793829.

It is an arithmetic number, because the mean of its divisors is an integer number (133985749968).

Almost surely, 2^{1232143464454} is an apocalyptic number.

1232143464454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1232143464454 is a deficient number, since it is larger than the sum of its proper divisors (911628535034).

1232143464454 is a wasteful number, since it uses less digits than its factorization.

1232143464454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313585859.

The product of its digits is 1105920, while the sum is 43.

Adding to 1232143464454 its reverse (4544643412321), we get a palindrome (5776786876775).

The spelling of 1232143464454 in words is "one trillion, two hundred thirty-two billion, one hundred forty-three million, four hundred sixty-four thousand, four hundred fifty-four".