2101312223 has 8 divisors (see below), whose sum is σ = 2225401728. Its totient is φ = 1979950104.

The previous prime is 2101312193. The next prime is 2101312229. The reversal of 2101312223 is 3222131012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101312223 - 2²⁰ = 2100263647 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 (2101312229) 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, 680261 + ... + 683342.

It is an arithmetic number, because the mean of its divisors is an integer number (278175216).

Almost surely, 2^2101312223 is an apocalyptic number.

2101312223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2101312223 is a deficient number, since it is larger than the sum of its proper divisors (124089505).

2101312223 is a wasteful number, since it uses less digits than its factorization.

2101312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363693.

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

The square root of 2101312223 is about 45840.0722403445. The cubic root of 2101312223 is about 1280.8458404707.

Adding to 2101312223 its reverse (3222131012), we get a palindrome (5323443235).

The spelling of 2101312223 in words is "two billion, one hundred one million, three hundred twelve thousand, two hundred twenty-three".