131111313002 has 16 divisors (see below), whose sum is σ = 198008533800. Its totient is φ = 65108564928.

The previous prime is 131111313001. The next prime is 131111313031. The reversal of 131111313002 is 200313111131.

It can be written as a sum of positive squares in 4 ways, for example, as 42527100841 + 88584212161 = 206221^2 + 297631^2 .

It is not an unprimeable number, because it can be changed into a prime (131111313001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3640628 + ... + 3676464.

Almost surely, 2^131111313002 is an apocalyptic number.

131111313002 is a deficient number, since it is larger than the sum of its proper divisors (66897220798).

131111313002 is a wasteful number, since it uses less digits than its factorization.

131111313002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48265.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 131111313002 its reverse (200313111131), we get a palindrome (331424424133).

The spelling of 131111313002 in words is "one hundred thirty-one billion, one hundred eleven million, three hundred thirteen thousand, two".