1310220113 has 4 divisors (see below), whose sum is σ = 1314692148. Its totient is φ = 1305748080.

The previous prime is 1310220097. The next prime is 1310220127. The reversal of 1310220113 is 3110220131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 606538384 + 703681729 = 24628^2 + 26527^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310220113 - 2⁴ = 1310220097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310220143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235578 + ... + 2236163.

It is an arithmetic number, because the mean of its divisors is an integer number (328673037).

Almost surely, 2^1310220113 is an apocalyptic number.

It is an amenable number.

1310220113 is a deficient number, since it is larger than the sum of its proper divisors (4472035).

1310220113 is an equidigital number, since it uses as much as digits as its factorization.

1310220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472034.

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

The square root of 1310220113 is about 36196.9627593255. The cubic root of 1310220113 is about 1094.2454614334.

Adding to 1310220113 its reverse (3110220131), we get a palindrome (4420440244).

The spelling of 1310220113 in words is "one billion, three hundred ten million, two hundred twenty thousand, one hundred thirteen".