1056531340237 has 2 divisors, whose sum is σ = 1056531340238. Its totient is φ = 1056531340236.

The previous prime is 1056531340231. The next prime is 1056531340351. The reversal of 1056531340237 is 7320431356501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1046295768996 + 10235571241 = 1022886^2 + 101171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056531340237 is a prime.

It is a super-2 number, since 2×1056531340237² (a number of 25 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 1056531340237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056531340231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528265670118 + 528265670119.

It is an arithmetic number, because the mean of its divisors is an integer number (528265670119).

Almost surely, 2^{1056531340237} is an apocalyptic number.

It is an amenable number.

1056531340237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056531340237 is an equidigital number, since it uses as much as digits as its factorization.

1056531340237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 40.

Adding to 1056531340237 its reverse (7320431356501), we get a palindrome (8376962696738).

The spelling of 1056531340237 in words is "one trillion, fifty-six billion, five hundred thirty-one million, three hundred forty thousand, two hundred thirty-seven".