131001313522 has 4 divisors (see below), whose sum is σ = 196501970286. Its totient is φ = 65500656760.

The previous prime is 131001313481. The next prime is 131001313571. The reversal of 131001313522 is 225313100131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 127978623081 + 3022690441 = 357741^2 + 54979^2 .

It is a super-2 number, since 2×131001313522² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131001313493 and 131001313502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750328379 + ... + 32750328382.

Almost surely, 2^131001313522 is an apocalyptic number.

131001313522 is a deficient number, since it is larger than the sum of its proper divisors (65500656764).

131001313522 is an equidigital number, since it uses as much as digits as its factorization.

131001313522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65500656763.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 131001313522 its reverse (225313100131), we get a palindrome (356314413653).

The spelling of 131001313522 in words is "one hundred thirty-one billion, one million, three hundred thirteen thousand, five hundred twenty-two".