1131723015171 has 16 divisors (see below), whose sum is σ = 1724766102528. Its totient is φ = 646610443200.

The previous prime is 1131723015169. The next prime is 1131723015187. The reversal of 1131723015171 is 1715103271311.

It is not a de Polignac number, because 1131723015171 - 2¹ = 1131723015169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131723015151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3526875 + ... + 3834356.

It is an arithmetic number, because the mean of its divisors is an integer number (107797881408).

Almost surely, 2^{1131723015171} is an apocalyptic number.

1131723015171 is a deficient number, since it is larger than the sum of its proper divisors (593043087357).

1131723015171 is an equidigital number, since it uses as much as digits as its factorization.

1131723015171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368562.

The product of its (nonzero) digits is 4410, while the sum is 33.

Adding to 1131723015171 its reverse (1715103271311), we get a palindrome (2846826286482).

The spelling of 1131723015171 in words is "one trillion, one hundred thirty-one billion, seven hundred twenty-three million, fifteen thousand, one hundred seventy-one".