1305422124123 has 96 divisors (see below), whose sum is σ = 1965211573248. Its totient is φ = 769832294400.

The previous prime is 1305422124119. The next prime is 1305422124133. The reversal of 1305422124123 is 3214212245031.

It is a happy number.

It is not a de Polignac number, because 1305422124123 - 2² = 1305422124119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1305422124133) 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 95 ways as a sum of consecutive naturals, for example, 399087978 + ... + 399091248.

It is an arithmetic number, because the mean of its divisors is an integer number (20470953888).

Almost surely, 2^{1305422124123} is an apocalyptic number.

1305422124123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1305422124123 is a deficient number, since it is larger than the sum of its proper divisors (659789449125).

1305422124123 is a wasteful number, since it uses less digits than its factorization.

1305422124123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677 (or 3664 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1305422124123 its reverse (3214212245031), we get a palindrome (4519634369154).

The spelling of 1305422124123 in words is "one trillion, three hundred five billion, four hundred twenty-two million, one hundred twenty-four thousand, one hundred twenty-three".