131001331322 has 16 divisors (see below), whose sum is σ = 208211672232. Its totient is φ = 61603023360.

The previous prime is 131001331313. The next prime is 131001331361. The reversal of 131001331322 is 223133100131.

It can be written as a sum of positive squares in 4 ways, for example, as 130262524561 + 738806761 = 360919^2 + 27181^2 .

It is a super-2 number, since 2×131001331322² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131001331294 and 131001331303.

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, 1348043 + ... + 1441950.

Almost surely, 2^131001331322 is an apocalyptic number.

131001331322 is a deficient number, since it is larger than the sum of its proper divisors (77210340910).

131001331322 is a wasteful number, since it uses less digits than its factorization.

131001331322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791393.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131001331322 its reverse (223133100131), we get a palindrome (354134431453).

The spelling of 131001331322 in words is "one hundred thirty-one billion, one million, three hundred thirty-one thousand, three hundred twenty-two".