112403265581 has 2 divisors, whose sum is σ = 112403265582. Its totient is φ = 112403265580.

The previous prime is 112403265539. The next prime is 112403265599. The reversal of 112403265581 is 185562304211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57393784900 + 55009480681 = 239570^2 + 234541^2 .

It is a cyclic number.

It is not a de Polignac number, because 112403265581 - 2¹⁸ = 112403003437 is a prime.

It is a super-2 number, since 2×112403265581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112403265281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56201632790 + 56201632791.

It is an arithmetic number, because the mean of its divisors is an integer number (56201632791).

Almost surely, 2^112403265581 is an apocalyptic number.

It is an amenable number.

112403265581 is a deficient number, since it is larger than the sum of its proper divisors (1).

112403265581 is an equidigital number, since it uses as much as digits as its factorization.

112403265581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 38.

Adding to 112403265581 its reverse (185562304211), we get a palindrome (297965569792).

The spelling of 112403265581 in words is "one hundred twelve billion, four hundred three million, two hundred sixty-five thousand, five hundred eighty-one".