1071311427 has 56 divisors (see below), whose sum is σ = 1671345648. Its totient is φ = 685843200.

The previous prime is 1071311407. The next prime is 1071311453. The reversal of 1071311427 is 7241131701.

1071311427 is a `hidden beast` number, since 107 + 131 + 1 + 427 = 666.

It is not a de Polignac number, because 1071311427 - 2⁶ = 1071311363 is a prime.

It is a super-2 number, since 2×1071311427² = 2295416347241552658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1071311427.

It is not an unprimeable number, because it can be changed into a prime (1071311407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2181652 + ... + 2182142.

It is an arithmetic number, because the mean of its divisors is an integer number (29845458).

Almost surely, 2^1071311427 is an apocalyptic number.

1071311427 is a deficient number, since it is larger than the sum of its proper divisors (600034221).

1071311427 is an frugal number, since it uses more digits than its factorization.

1071311427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1071311427 is about 32730.8940757811. The cubic root of 1071311427 is about 1023.2268139424.

The spelling of 1071311427 in words is "one billion, seventy-one million, three hundred eleven thousand, four hundred twenty-seven".