11961022037 has 2 divisors, whose sum is σ = 11961022038. Its totient is φ = 11961022036.

The previous prime is 11961022013. The next prime is 11961022081. The reversal of 11961022037 is 73022016911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11442366961 + 518655076 = 106969^2 + 22774^2 .

It is a cyclic number.

It is not a de Polignac number, because 11961022037 - 2¹⁸ = 11960759893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11961021994 and 11961022012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11961222037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5980511018 + 5980511019.

It is an arithmetic number, because the mean of its divisors is an integer number (5980511019).

Almost surely, 2^11961022037 is an apocalyptic number.

It is an amenable number.

11961022037 is a deficient number, since it is larger than the sum of its proper divisors (1).

11961022037 is an equidigital number, since it uses as much as digits as its factorization.

11961022037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

Adding to 11961022037 its reverse (73022016911), we get a palindrome (84983038948).

The spelling of 11961022037 in words is "eleven billion, nine hundred sixty-one million, twenty-two thousand, thirty-seven".