1320311109988 has 24 divisors (see below), whose sum is σ = 2516236826040. Its totient is φ = 602527453440.

The previous prime is 1320311109947. The next prime is 1320311109989. The reversal of 1320311109988 is 8899011130231.

It can be written as a sum of positive squares in 4 ways, for example, as 105513984 + 1320205596004 = 10272^2 + 1149002^2 .

It is not an unprimeable number, because it can be changed into a prime (1320311109989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142639183 + ... + 142648438.

It is an arithmetic number, because the mean of its divisors is an integer number (104843201085).

Almost surely, 2^{1320311109988} is an apocalyptic number.

It is an amenable number.

1320311109988 is a deficient number, since it is larger than the sum of its proper divisors (1195925716052).

1320311109988 is a wasteful number, since it uses less digits than its factorization.

1320311109988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285287727 (or 285287725 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 1320311109988 in words is "one trillion, three hundred twenty billion, three hundred eleven million, one hundred nine thousand, nine hundred eighty-eight".