123503143143 has 4 divisors (see below), whose sum is σ = 164670857528. Its totient is φ = 82335428760.

The previous prime is 123503143139. The next prime is 123503143147. The reversal of 123503143143 is 341341305321.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (123503143139) and next prime (123503143147).

It is not a de Polignac number, because 123503143143 - 2² = 123503143139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123503143143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123503143147) 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 3 ways as a sum of consecutive naturals, for example, 20583857188 + ... + 20583857193.

It is an arithmetic number, because the mean of its divisors is an integer number (41167714382).

Almost surely, 2^123503143143 is an apocalyptic number.

123503143143 is a deficient number, since it is larger than the sum of its proper divisors (41167714385).

123503143143 is an equidigital number, since it uses as much as digits as its factorization.

123503143143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41167714384.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 123503143143 its reverse (341341305321), we get a palindrome (464844448464).

The spelling of 123503143143 in words is "one hundred twenty-three billion, five hundred three million, one hundred forty-three thousand, one hundred forty-three".