1310140420 has 12 divisors (see below), whose sum is σ = 2751294924. Its totient is φ = 524056160.

The previous prime is 1310140397. The next prime is 1310140441. The reversal of 1310140420 is 240410131.

It can be written as a sum of positive squares in 2 ways, for example, as 924646464 + 385493956 = 30408^2 + 19634^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1310140394 and 1310140403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32753491 + ... + 32753530.

It is an arithmetic number, because the mean of its divisors is an integer number (229274577).

Almost surely, 2^1310140420 is an apocalyptic number.

1310140420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310140420 is an abundant number, since it is smaller than the sum of its proper divisors (1441154504).

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

1310140420 is a wasteful number, since it uses less digits than its factorization.

1310140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65507030 (or 65507028 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1310140420 is about 36195.8619181806. The cubic root of 1310140420 is about 1094.2232754738.

Adding to 1310140420 its reverse (240410131), we get a palindrome (1550550551).

The spelling of 1310140420 in words is "one billion, three hundred ten million, one hundred forty thousand, four hundred twenty".