2113223201 has 4 divisors (see below), whose sum is σ = 2121992004. Its totient is φ = 2104454400.

The previous prime is 2113223113. The next prime is 2113223207. The reversal of 2113223201 is 1023223112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1904449600 + 208773601 = 43640^2 + 14449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113223201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113223201.

It is not an unprimeable number, because it can be changed into a prime (2113223207) 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, 4384040 + ... + 4384521.

It is an arithmetic number, because the mean of its divisors is an integer number (530498001).

Almost surely, 2^2113223201 is an apocalyptic number.

It is an amenable number.

2113223201 is a deficient number, since it is larger than the sum of its proper divisors (8768803).

2113223201 is an equidigital number, since it uses as much as digits as its factorization.

2113223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768802.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2113223201 is about 45969.8074936148. The cubic root of 2113223201 is about 1283.2613773264.

Adding to 2113223201 its reverse (1023223112), we get a palindrome (3136446313).

The spelling of 2113223201 in words is "two billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred one".