11371011173 has 4 divisors (see below), whose sum is σ = 11413282860. Its totient is φ = 11328739488.

The previous prime is 11371011151. The next prime is 11371011181. The reversal of 11371011173 is 37111017311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37111017311 = 47 ⋅789596113.

It can be written as a sum of positive squares in 2 ways, for example, as 1932305764 + 9438705409 = 43958^2 + 97153^2 .

It is a cyclic number.

It is not a de Polignac number, because 11371011173 - 2⁶ = 11371011109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11371011103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21135440 + ... + 21135977.

It is an arithmetic number, because the mean of its divisors is an integer number (2853320715).

Almost surely, 2^11371011173 is an apocalyptic number.

It is an amenable number.

11371011173 is a deficient number, since it is larger than the sum of its proper divisors (42271687).

11371011173 is an equidigital number, since it uses as much as digits as its factorization.

11371011173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42271686.

The product of its (nonzero) digits is 441, while the sum is 26.

Adding to 11371011173 its reverse (37111017311), we get a palindrome (48482028484).

The spelling of 11371011173 in words is "eleven billion, three hundred seventy-one million, eleven thousand, one hundred seventy-three".