131001034443437 has 2 divisors, whose sum is σ = 131001034443438. Its totient is φ = 131001034443436.

The previous prime is 131001034443361. The next prime is 131001034443523. The reversal of 131001034443437 is 734344430100131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118643637077956 + 12357397365481 = 10892366^2 + 3515309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131001034443437 is a prime.

It is a super-2 number, since 2×131001034443437² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131001034443437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131001034443137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500517221718 + 65500517221719.

It is an arithmetic number, because the mean of its divisors is an integer number (65500517221719).

Almost surely, 2^{131001034443437} is an apocalyptic number.

It is an amenable number.

131001034443437 is a deficient number, since it is larger than the sum of its proper divisors (1).

131001034443437 is an equidigital number, since it uses as much as digits as its factorization.

131001034443437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 38.

Adding to 131001034443437 its reverse (734344430100131), we get a palindrome (865345464543568).

The spelling of 131001034443437 in words is "one hundred thirty-one trillion, one billion, thirty-four million, four hundred forty-three thousand, four hundred thirty-seven".