1320131013 has 4 divisors (see below), whose sum is σ = 1760174688. Its totient is φ = 880087340.

The previous prime is 1320131009. The next prime is 1320131027. The reversal of 1320131013 is 3101310231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1320131013 - 2² = 1320131009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320130983 and 1320131001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320133013) 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, 220021833 + ... + 220021838.

It is an arithmetic number, because the mean of its divisors is an integer number (440043672).

Almost surely, 2^1320131013 is an apocalyptic number.

It is an amenable number.

1320131013 is a deficient number, since it is larger than the sum of its proper divisors (440043675).

1320131013 is an equidigital number, since it uses as much as digits as its factorization.

1320131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440043674.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1320131013 is about 36333.6072115060. The cubic root of 1320131013 is about 1096.9976012536.

Adding to 1320131013 its reverse (3101310231), we get a palindrome (4421441244).

The spelling of 1320131013 in words is "one billion, three hundred twenty million, one hundred thirty-one thousand, thirteen".