1311300223616 has 32 divisors (see below), whose sum is σ = 2612436321600. Its totient is φ = 655629931264.

The previous prime is 1311300223613. The next prime is 1311300223657. The reversal of 1311300223616 is 6163220031131.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1311300223613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568441 + ... + 4846983.

It is an arithmetic number, because the mean of its divisors is an integer number (81638635050).

Almost surely, 2^{1311300223616} is an apocalyptic number.

1311300223616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1311300223616 is a deficient number, since it is larger than the sum of its proper divisors (1301136097984).

1311300223616 is an equidigital number, since it uses as much as digits as its factorization.

1311300223616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315336 (or 315324 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 1311300223616 its reverse (6163220031131), we get a palindrome (7474520254747).

The spelling of 1311300223616 in words is "one trillion, three hundred eleven billion, three hundred million, two hundred twenty-three thousand, six hundred sixteen".