1311623022432 has 24 divisors (see below), whose sum is σ = 3443010434136. Its totient is φ = 437207674112.

The previous prime is 1311623022397. The next prime is 1311623022553. The reversal of 1311623022432 is 2342203261131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1311623022432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6831369813 + ... + 6831370004.

It is an arithmetic number, because the mean of its divisors is an integer number (143458768089).

Almost surely, 2^{1311623022432} is an apocalyptic number.

1311623022432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311623022432 is an abundant number, since it is smaller than the sum of its proper divisors (2131387411704).

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

1311623022432 is a wasteful number, since it uses less digits than its factorization.

1311623022432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13662739830 (or 13662739822 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 1311623022432 its reverse (2342203261131), we get a palindrome (3653826283563).

The spelling of 1311623022432 in words is "one trillion, three hundred eleven billion, six hundred twenty-three million, twenty-two thousand, four hundred thirty-two".