1170121271 has 16 divisors (see below), whose sum is σ = 1354579200. Its totient is φ = 998954880.

The previous prime is 1170121243. The next prime is 1170121273. The reversal of 1170121271 is 1721210711.

It is not a de Polignac number, because 1170121271 - 2⁶ = 1170121207 is a prime.

It is a super-3 number, since 3×1170121271³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170121273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80630 + ... + 94028.

It is an arithmetic number, because the mean of its divisors is an integer number (84661200).

Almost surely, 2^1170121271 is an apocalyptic number.

1170121271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1170121271 is a deficient number, since it is larger than the sum of its proper divisors (184457929).

1170121271 is a wasteful number, since it uses less digits than its factorization.

1170121271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13894.

The product of its (nonzero) digits is 196, while the sum is 23.

The square root of 1170121271 is about 34207.0354020924. The cubic root of 1170121271 is about 1053.7646482328.

Adding to 1170121271 its reverse (1721210711), we get a palindrome (2891331982).

The spelling of 1170121271 in words is "one billion, one hundred seventy million, one hundred twenty-one thousand, two hundred seventy-one".