1310321012 has 96 divisors (see below), whose sum is σ = 3114236160. Its totient is φ = 465822720.

The previous prime is 1310321003. The next prime is 1310321027. The reversal of 1310321012 is 2101230131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354518 + ... + 358194.

It is an arithmetic number, because the mean of its divisors is an integer number (32439960).

Almost surely, 2^1310321012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310321012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557118080).

1310321012 is an abundant number, since it is smaller than the sum of its proper divisors (1803915148).

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

1310321012 is a wasteful number, since it uses less digits than its factorization.

1310321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801 (or 3799 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1310321012 is about 36198.3564820283. The cubic root of 1310321012 is about 1094.2735497009.

Adding to 1310321012 its reverse (2101230131), we get a palindrome (3411551143).

The spelling of 1310321012 in words is "one billion, three hundred ten million, three hundred twenty-one thousand, twelve".