131203211031131 has 4 divisors (see below), whose sum is σ = 131203255656000. Its totient is φ = 131203166406264.

The previous prime is 131203211031083. The next prime is 131203211031149. The reversal of 131203211031131 is 131130112302131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131203211031131 is a prime.

It is a super-2 number, since 2×131203211031131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131203211031097 and 131203211031106.

It is not an unprimeable number, because it can be changed into a prime (131203211031161) 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 3 ways as a sum of consecutive naturals, for example, 17565611 + ... + 23894708.

It is an arithmetic number, because the mean of its divisors is an integer number (32800813914000).

Almost surely, 2^{131203211031131} is an apocalyptic number.

131203211031131 is a deficient number, since it is larger than the sum of its proper divisors (44624869).

131203211031131 is an equidigital number, since it uses as much as digits as its factorization.

131203211031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44624868.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 131203211031131 its reverse (131130112302131), we get a palindrome (262333323333262).

The spelling of 131203211031131 in words is "one hundred thirty-one trillion, two hundred three billion, two hundred eleven million, thirty-one thousand, one hundred thirty-one".