236220530813 has 4 divisors (see below), whose sum is σ = 243840547968. Its totient is φ = 228600513660.

The previous prime is 236220530809. The next prime is 236220530839. The reversal of 236220530813 is 318035022632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 236220530813 - 2² = 236220530809 is a prime.

It is a super-3 number, since 3×236220530813³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236220530873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3810008531 + ... + 3810008592.

It is an arithmetic number, because the mean of its divisors is an integer number (60960136992).

Almost surely, 2^236220530813 is an apocalyptic number.

It is an amenable number.

236220530813 is a deficient number, since it is larger than the sum of its proper divisors (7620017155).

236220530813 is an equidigital number, since it uses as much as digits as its factorization.

236220530813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620017154.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 236220530813 in words is "two hundred thirty-six billion, two hundred twenty million, five hundred thirty thousand, eight hundred thirteen".