1305423143124 has 48 divisors (see below), whose sum is σ = 3117544125696. Its totient is φ = 424958819200.

The previous prime is 1305423143117. The next prime is 1305423143173. The reversal of 1305423143124 is 4213413245031.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2250387 + ... + 2770394.

It is an arithmetic number, because the mean of its divisors is an integer number (64948835952).

Almost surely, 2^{1305423143124} is an apocalyptic number.

It is an amenable number.

1305423143124 is an abundant number, since it is smaller than the sum of its proper divisors (1812120982572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1305423143124 is a wasteful number, since it uses less digits than its factorization.

1305423143124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021296 (or 5021294 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 1305423143124 its reverse (4213413245031), we get a palindrome (5518836388155).

The spelling of 1305423143124 in words is "one trillion, three hundred five billion, four hundred twenty-three million, one hundred forty-three thousand, one hundred twenty-four".