1131418471 has 2 divisors, whose sum is σ = 1131418472. Its totient is φ = 1131418470.

The previous prime is 1131418469. The next prime is 1131418543. The reversal of 1131418471 is 1748141311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131418471 - 2¹ = 1131418469 is a prime.

It is a super-3 number, since 3×1131418471³ (a number of 28 digits) contains 333 as substring.

Together with 1131418469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131418271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565709235 + 565709236.

It is an arithmetic number, because the mean of its divisors is an integer number (565709236).

Almost surely, 2^1131418471 is an apocalyptic number.

1131418471 is the 17980-th centered heptagonal number.

1131418471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131418471 is an equidigital number, since it uses as much as digits as its factorization.

1131418471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 31.

The square root of 1131418471 is about 33636.5644946091. The cubic root of 1131418471 is about 1042.0160815154.

Adding to 1131418471 its reverse (1748141311), we get a palindrome (2879559782).

The spelling of 1131418471 in words is "one billion, one hundred thirty-one million, four hundred eighteen thousand, four hundred seventy-one".