1310421210 has 128 divisors (see below), whose sum is σ = 3688243200. Its totient is φ = 297847872.

The previous prime is 1310421191. The next prime is 1310421239. The reversal of 1310421210 is 121240131.

1310421210 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1310421210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3570447 + ... + 3570813.

It is an arithmetic number, because the mean of its divisors is an integer number (28814400).

Almost surely, 2^1310421210 is an apocalyptic number.

1310421210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310421210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1844121600).

1310421210 is an abundant number, since it is smaller than the sum of its proper divisors (2377821990).

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

1310421210 is a wasteful number, since it uses less digits than its factorization.

1310421210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1310421210 is about 36199.7404686829. The cubic root of 1310421210 is about 1094.3014413970.

Adding to 1310421210 its reverse (121240131), we get a palindrome (1431661341).

The spelling of 1310421210 in words is "one billion, three hundred ten million, four hundred twenty-one thousand, two hundred ten".