2313100221 has 4 divisors (see below), whose sum is σ = 3084133632. Its totient is φ = 1542066812.

The previous prime is 2313100211. The next prime is 2313100241. The reversal of 2313100221 is 1220013132.

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 2313100221 - 2⁷ = 2313100093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2313100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313100201) 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, 385516701 + ... + 385516706.

It is an arithmetic number, because the mean of its divisors is an integer number (771033408).

Almost surely, 2^2313100221 is an apocalyptic number.

It is an amenable number.

2313100221 is a deficient number, since it is larger than the sum of its proper divisors (771033411).

2313100221 is an equidigital number, since it uses as much as digits as its factorization.

2313100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771033410.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2313100221 is about 48094.7005500606. The cubic root of 2313100221 is about 1322.5075195368.

Adding to 2313100221 its reverse (1220013132), we get a palindrome (3533113353).

The spelling of 2313100221 in words is "two billion, three hundred thirteen million, one hundred thousand, two hundred twenty-one".