1313231302120 has 64 divisors (see below), whose sum is σ = 3053421930240. Its totient is φ = 507996384000.

The previous prime is 1313231302111. The next prime is 1313231302127. The reversal of 1313231302120 is 212031323131.

It is a junction number, because it is equal to n+sod(n) for n = 1313231302091 and 1313231302100.

It is not an unprimeable number, because it can be changed into a prime (1313231302127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3606016 + ... + 3953455.

It is an arithmetic number, because the mean of its divisors is an integer number (47709717660).

Almost surely, 2^{1313231302120} is an apocalyptic number.

1313231302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313231302120 is an abundant number, since it is smaller than the sum of its proper divisors (1740190628120).

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

1313231302120 is a wasteful number, since it uses less digits than its factorization.

1313231302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559626 (or 7559622 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1313231302120 its reverse (212031323131), we get a palindrome (1525262625251).

The spelling of 1313231302120 in words is "one trillion, three hundred thirteen billion, two hundred thirty-one million, three hundred two thousand, one hundred twenty".