11121057173 has 2 divisors, whose sum is σ = 11121057174. Its totient is φ = 11121057172.

The previous prime is 11121057131. The next prime is 11121057271. The reversal of 11121057173 is 37175012111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7124541649 + 3996515524 = 84407^2 + 63218^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121057173 - 2⁸ = 11121056917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121057473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560528586 + 5560528587.

It is an arithmetic number, because the mean of its divisors is an integer number (5560528587).

Almost surely, 2^11121057173 is an apocalyptic number.

It is an amenable number.

11121057173 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121057173 is an equidigital number, since it uses as much as digits as its factorization.

11121057173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 29.

Adding to 11121057173 its reverse (37175012111), we get a palindrome (48296069284).

The spelling of 11121057173 in words is "eleven billion, one hundred twenty-one million, fifty-seven thousand, one hundred seventy-three".