1271117133 has 24 divisors (see below), whose sum is σ = 2157049440. Its totient is φ = 711113760.

The previous prime is 1271117131. The next prime is 1271117143. The reversal of 1271117133 is 3317111721.

It is not a de Polignac number, because 1271117133 - 2¹ = 1271117131 is a prime.

It is a super-2 number, since 2×1271117133² = 3231477531612279378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1271117097 and 1271117106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271117131) 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 23 ways as a sum of consecutive naturals, for example, 492543 + ... + 495116.

It is an arithmetic number, because the mean of its divisors is an integer number (89877060).

Almost surely, 2^1271117133 is an apocalyptic number.

1271117133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1271117133 is a deficient number, since it is larger than the sum of its proper divisors (885932307).

1271117133 is a wasteful number, since it uses less digits than its factorization.

1271117133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987689 (or 987686 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 1271117133 is about 35652.7296710925. The cubic root of 1271117133 is about 1083.2495671300.

Adding to 1271117133 its reverse (3317111721), we get a palindrome (4588228854).

The spelling of 1271117133 in words is "one billion, two hundred seventy-one million, one hundred seventeen thousand, one hundred thirty-three".