131203222031 has 16 divisors (see below), whose sum is σ = 154796156928. Its totient is φ = 108823284000.

The previous prime is 131203222027. The next prime is 131203222037. The reversal of 131203222031 is 130222302131.

It is a cyclic number.

It is not a de Polignac number, because 131203222031 - 2² = 131203222027 is a prime.

It is a super-2 number, since 2×131203222031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131203221994 and 131203222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131203222037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4901921 + ... + 4928613.

It is an arithmetic number, because the mean of its divisors is an integer number (9674759808).

Almost surely, 2^131203222031 is an apocalyptic number.

131203222031 is a deficient number, since it is larger than the sum of its proper divisors (23592934897).

131203222031 is a wasteful number, since it uses less digits than its factorization.

131203222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49382.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131203222031 its reverse (130222302131), we get a palindrome (261425524162).

The spelling of 131203222031 in words is "one hundred thirty-one billion, two hundred three million, two hundred twenty-two thousand, thirty-one".