1123851000173 has 4 divisors (see below), whose sum is σ = 1226019272928. Its totient is φ = 1021682727420.

The previous prime is 1123851000157. The next prime is 1123851000203. The reversal of 1123851000173 is 3710001583211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123851000173 - 2⁴ = 1123851000157 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 (1123851000113) 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, 51084136361 + ... + 51084136382.

It is an arithmetic number, because the mean of its divisors is an integer number (306504818232).

Almost surely, 2^{1123851000173} is an apocalyptic number.

It is an amenable number.

1123851000173 is a deficient number, since it is larger than the sum of its proper divisors (102168272755).

1123851000173 is a wasteful number, since it uses less digits than its factorization.

1123851000173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102168272754.

The product of its (nonzero) digits is 5040, while the sum is 32.

Adding to 1123851000173 its reverse (3710001583211), we get a palindrome (4833852583384).

The spelling of 1123851000173 in words is "one trillion, one hundred twenty-three billion, eight hundred fifty-one million, one hundred seventy-three", and thus it is an aban number.