36311021 has 8 divisors (see below), whose sum is σ = 36959040. Its totient is φ = 35668512.

The previous prime is 36310993. The next prime is 36311047. The reversal of 36311021 is 12011363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36311021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36311321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13256 + ... + 15758.

It is an arithmetic number, because the mean of its divisors is an integer number (4619880).

Almost surely, 2^36311021 is an apocalyptic number.

It is an amenable number.

36311021 is a deficient number, since it is larger than the sum of its proper divisors (648019).

36311021 is a wasteful number, since it uses less digits than its factorization.

36311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 36311021 is about 6025.8626768289. The cubic root of 36311021 is about 331.1408965001.

Adding to 36311021 its reverse (12011363), we get a palindrome (48322384).

The spelling of 36311021 in words is "thirty-six million, three hundred eleven thousand, twenty-one".