1232143453551 has 8 divisors (see below), whose sum is σ = 1643116233904. Its totient is φ = 821299821120.

The previous prime is 1232143453501. The next prime is 1232143453601. The reversal of 1232143453551 is 1553543412321.

It is an interprime number because it is at equal distance from previous prime (1232143453501) and next prime (1232143453601).

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

It is not a de Polignac number, because 1232143453551 - 2¹⁴ = 1232143437167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232143453501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32264716 + ... + 32302881.

It is an arithmetic number, because the mean of its divisors is an integer number (205389529238).

Almost surely, 2^{1232143453551} is an apocalyptic number.

1232143453551 is a deficient number, since it is larger than the sum of its proper divisors (410972780353).

1232143453551 is an equidigital number, since it uses as much as digits as its factorization.

1232143453551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64573961.

The product of its digits is 216000, while the sum is 39.

Adding to 1232143453551 its reverse (1553543412321), we get a palindrome (2785686865872).

The spelling of 1232143453551 in words is "one trillion, two hundred thirty-two billion, one hundred forty-three million, four hundred fifty-three thousand, five hundred fifty-one".