123232145143 has 4 divisors (see below), whose sum is σ = 123297941008. Its totient is φ = 123166349280.

The previous prime is 123232145131. The next prime is 123232145147. The reversal of 123232145143 is 341541232321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123232145143 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 (123232145147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32895123 + ... + 32898868.

It is an arithmetic number, because the mean of its divisors is an integer number (30824485252).

Almost surely, 2^123232145143 is an apocalyptic number.

123232145143 is a deficient number, since it is larger than the sum of its proper divisors (65795865).

123232145143 is an equidigital number, since it uses as much as digits as its factorization.

123232145143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65795864.

The product of its digits is 17280, while the sum is 31.

Adding to 123232145143 its reverse (341541232321), we get a palindrome (464773377464).

The spelling of 123232145143 in words is "one hundred twenty-three billion, two hundred thirty-two million, one hundred forty-five thousand, one hundred forty-three".