27311131 has 2 divisors, whose sum is σ = 27311132. Its totient is φ = 27311130.

The previous prime is 27311117. The next prime is 27311147. The reversal of 27311131 is 13111372.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27311131 - 2⁵ = 27311099 is a prime.

It is a super-2 number, since 2×27311131² = 1491795752998322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27311099 and 27311108.

It is not a weakly prime, because it can be changed into another prime (27311101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13655565 + 13655566.

It is an arithmetic number, because the mean of its divisors is an integer number (13655566).

Almost surely, 2^27311131 is an apocalyptic number.

27311131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27311131 is an equidigital number, since it uses as much as digits as its factorization.

27311131 is an evil number, because the sum of its binary digits is even.

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

The square root of 27311131 is about 5226.0052621481. The cubic root of 27311131 is about 301.1479388888.

The spelling of 27311131 in words is "twenty-seven million, three hundred eleven thousand, one hundred thirty-one".