131302303213 has 4 divisors (see below), whose sum is σ = 131303133468. Its totient is φ = 131301472960.

The previous prime is 131302303157. The next prime is 131302303243. The reversal of 131302303213 is 312303203131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 126847808649 + 4454494564 = 356157^2 + 66742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131302303213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302303243) 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, 96268 + ... + 521413.

It is an arithmetic number, because the mean of its divisors is an integer number (32825783367).

Almost surely, 2^131302303213 is an apocalyptic number.

It is an amenable number.

131302303213 is a deficient number, since it is larger than the sum of its proper divisors (830255).

131302303213 is an equidigital number, since it uses as much as digits as its factorization.

131302303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830254.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 131302303213 its reverse (312303203131), we get a palindrome (443605506344).

The spelling of 131302303213 in words is "one hundred thirty-one billion, three hundred two million, three hundred three thousand, two hundred thirteen".