131301013 has 4 divisors (see below), whose sum is σ = 139024620. Its totient is φ = 123577408.

The previous prime is 131300989. The next prime is 131301029. The reversal of 131301013 is 310103131.

131301013 = 8102² + 8103².

It is a happy number.

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 65642404 + 65658609 = 8102^2 + 8103^2 .

It is a cyclic number.

It is not a de Polignac number, because 131301013 - 2²⁵ = 97746581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131300984 and 131301002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131341013) 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, 3861778 + ... + 3861811.

It is an arithmetic number, because the mean of its divisors is an integer number (34756155).

Almost surely, 2^131301013 is an apocalyptic number.

131301013 is the 8103-rd centered square number.

It is an amenable number.

131301013 is a deficient number, since it is larger than the sum of its proper divisors (7723607).

131301013 is an equidigital number, since it uses as much as digits as its factorization.

131301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723606.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131301013 is about 11458.6654109456. The cubic root of 131301013 is about 508.2640104218.

Adding to 131301013 its reverse (310103131), we get a palindrome (441404144).

The spelling of 131301013 in words is "one hundred thirty-one million, three hundred one thousand, thirteen".