131145214331 has 4 divisors (see below), whose sum is σ = 131157713664. Its totient is φ = 131132715000.

The previous prime is 131145214289. The next prime is 131145214339. The reversal of 131145214331 is 133412541131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133412541131 = 463 ⋅288148037.

It is a cyclic number.

It is not a de Polignac number, because 131145214331 - 2³⁴ = 113965345147 is a prime.

It is a super-2 number, since 2×131145214331² (a number of 23 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 = 131145214294 and 131145214303.

It is not an unprimeable number, because it can be changed into a prime (131145214339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6233915 + ... + 6254916.

It is an arithmetic number, because the mean of its divisors is an integer number (32789428416).

Almost surely, 2^131145214331 is an apocalyptic number.

131145214331 is a deficient number, since it is larger than the sum of its proper divisors (12499333).

131145214331 is a wasteful number, since it uses less digits than its factorization.

131145214331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12499332.

The product of its digits is 4320, while the sum is 29.

Adding to 131145214331 its reverse (133412541131), we get a palindrome (264557755462).

The spelling of 131145214331 in words is "one hundred thirty-one billion, one hundred forty-five million, two hundred fourteen thousand, three hundred thirty-one".