1310121102320 has 80 divisors (see below), whose sum is σ = 3112010020992. Its totient is φ = 512786350080.

The previous prime is 1310121102289. The next prime is 1310121102371. The reversal of 1310121102320 is 232011210131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246329 + ... + 1637351.

Almost surely, 2^{1310121102320} is an apocalyptic number.

1310121102320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310121102320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1556005010496).

1310121102320 is an abundant number, since it is smaller than the sum of its proper divisors (1801888918672).

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

1310121102320 is a wasteful number, since it uses less digits than its factorization.

1310121102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391290 (or 1391284 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1310121102320 its reverse (232011210131), we get a palindrome (1542132312451).

The spelling of 1310121102320 in words is "one trillion, three hundred ten billion, one hundred twenty-one million, one hundred two thousand, three hundred twenty".