11273131 has 2 divisors, whose sum is σ = 11273132. Its totient is φ = 11273130.

The previous prime is 11273113. The next prime is 11273147. The reversal of 11273131 is 13137211.

Together with previous prime (11273113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11273131 - 2¹¹ = 11271083 is a prime.

It is a super-2 number, since 2×11273131² = 254166965086322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11273099 and 11273108.

It is not a weakly prime, because it can be changed into another prime (11273111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636565 + 5636566.

It is an arithmetic number, because the mean of its divisors is an integer number (5636566).

Almost surely, 2^11273131 is an apocalyptic number.

11273131 is the 2124-th centered pentagonal number.

11273131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11273131 is an equidigital number, since it uses as much as digits as its factorization.

11273131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126, while the sum is 19.

The square root of 11273131 is about 3357.5483615281. The cubic root of 11273131 is about 224.2237016389.

The spelling of 11273131 in words is "eleven million, two hundred seventy-three thousand, one hundred thirty-one".