13123400143 has 4 divisors (see below), whose sum is σ = 14998171600. Its totient is φ = 11248628688.

The previous prime is 13123400123. The next prime is 13123400153. The reversal of 13123400143 is 34100432131.

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-13123400143 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 (13123400123) 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, 937385718 + ... + 937385731.

It is an arithmetic number, because the mean of its divisors is an integer number (3749542900).

Almost surely, 2^13123400143 is an apocalyptic number.

13123400143 is a deficient number, since it is larger than the sum of its proper divisors (1874771457).

13123400143 is an equidigital number, since it uses as much as digits as its factorization.

13123400143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874771456.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13123400143 its reverse (34100432131), we get a palindrome (47223832274).

The spelling of 13123400143 in words is "thirteen billion, one hundred twenty-three million, four hundred thousand, one hundred forty-three".