36311131 has 2 divisors, whose sum is σ = 36311132. Its totient is φ = 36311130.

The previous prime is 36311113. The next prime is 36311141. The reversal of 36311131 is 13111363.

Together with previous prime (36311113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13111363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36311131 - 2¹⁹ = 35786843 is a prime.

It is a super-2 number, since 2×36311131² = 2636996468998322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36311099 and 36311108.

It is not a weakly prime, because it can be changed into another prime (36311111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18155565 + 18155566.

It is an arithmetic number, because the mean of its divisors is an integer number (18155566).

Almost surely, 2^36311131 is an apocalyptic number.

36311131 is a deficient number, since it is larger than the sum of its proper divisors (1).

36311131 is an equidigital number, since it uses as much as digits as its factorization.

36311131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 19.

The square root of 36311131 is about 6025.8718041459. The cubic root of 36311131 is about 331.1412308840.

Adding to 36311131 its reverse (13111363), we get a palindrome (49422494).

The spelling of 36311131 in words is "thirty-six million, three hundred eleven thousand, one hundred thirty-one".