1310321101020 has 48 divisors (see below), whose sum is σ = 3668973235200. Its totient is φ = 349411898176.

The previous prime is 1310321100997. The next prime is 1310321101049. The reversal of 1310321101020 is 201011230131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 3214681 + ... + 3599279.

It is an arithmetic number, because the mean of its divisors is an integer number (76436942400).

Almost surely, 2^{1310321101020} is an apocalyptic number.

1310321101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310321101020 is an abundant number, since it is smaller than the sum of its proper divisors (2358652134180).

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

1310321101020 is a wasteful number, since it uses less digits than its factorization.

1310321101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441394 (or 441392 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1310321101020 its reverse (201011230131), we get a palindrome (1511332331151).

The spelling of 1310321101020 in words is "one trillion, three hundred ten billion, three hundred twenty-one million, one hundred one thousand, twenty".