131051510220313 has 4 divisors (see below), whose sum is σ = 135278978291968. Its totient is φ = 126824042148660.

The previous prime is 131051510220299. The next prime is 131051510220329. The reversal of 131051510220313 is 313022015150131.

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 131051510220313 - 2¹³ = 131051510212121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131051510220413) 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, 2113734035781 + ... + 2113734035842.

It is an arithmetic number, because the mean of its divisors is an integer number (33819744572992).

Almost surely, 2^{131051510220313} is an apocalyptic number.

It is an amenable number.

131051510220313 is a deficient number, since it is larger than the sum of its proper divisors (4227468071655).

131051510220313 is an equidigital number, since it uses as much as digits as its factorization.

131051510220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227468071654.

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 131051510220313 its reverse (313022015150131), we get a palindrome (444073525370444).

The spelling of 131051510220313 in words is "one hundred thirty-one trillion, fifty-one billion, five hundred ten million, two hundred twenty thousand, three hundred thirteen".