36111121 has 2 divisors, whose sum is σ = 36111122. Its totient is φ = 36111120.

The previous prime is 36111113. The next prime is 36111139. The reversal of 36111121 is 12111163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35533521 + 577600 = 5961^2 + 760^2 .

It is an emirp because it is prime and its reverse (12111163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36111121 - 2³ = 36111113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36111095 and 36111104.

It is not a weakly prime, because it can be changed into another prime (36111221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18055560 + 18055561.

It is an arithmetic number, because the mean of its divisors is an integer number (18055561).

Almost surely, 2^36111121 is an apocalyptic number.

It is an amenable number.

36111121 is a deficient number, since it is larger than the sum of its proper divisors (1).

36111121 is an equidigital number, since it uses as much as digits as its factorization.

36111121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36, while the sum is 16.

The square root of 36111121 is about 6009.2529485786. The cubic root of 36111121 is about 330.5321106184.

Adding to 36111121 its reverse (12111163), we get a palindrome (48222284).

The spelling of 36111121 in words is "thirty-six million, one hundred eleven thousand, one hundred twenty-one".