131001313505 has 8 divisors (see below), whose sum is σ = 157242935232. Its totient is φ = 104773478128.

The previous prime is 131001313481. The next prime is 131001313571. The reversal of 131001313505 is 505313100131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131001313505 - 2³² = 126706346209 is a prime.

It is a super-2 number, since 2×131001313505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3425669 + ... + 3463698.

It is an arithmetic number, because the mean of its divisors is an integer number (19655366904).

Almost surely, 2^131001313505 is an apocalyptic number.

It is an amenable number.

131001313505 is a deficient number, since it is larger than the sum of its proper divisors (26241621727).

131001313505 is an equidigital number, since it uses as much as digits as its factorization.

131001313505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6893175.

The product of its (nonzero) digits is 675, while the sum is 23.

Adding to 131001313505 its reverse (505313100131), we get a palindrome (636314413636).

The spelling of 131001313505 in words is "one hundred thirty-one billion, one million, three hundred thirteen thousand, five hundred five".