2113221023 has 8 divisors (see below), whose sum is σ = 2257331328. Its totient is φ = 1971311104.

The previous prime is 2113221017. The next prime is 2113221029. The reversal of 2113221023 is 3201223112.

It is an interprime number because it is at equal distance from previous prime (2113221017) and next prime (2113221029).

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 2113221023 - 2¹⁶ = 2113155487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113220992 and 2113221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113221029) 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, 548111 + ... + 551952.

It is an arithmetic number, because the mean of its divisors is an integer number (282166416).

Almost surely, 2^2113221023 is an apocalyptic number.

2113221023 is a deficient number, since it is larger than the sum of its proper divisors (144110305).

2113221023 is a wasteful number, since it uses less digits than its factorization.

2113221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100193.

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

The square root of 2113221023 is about 45969.7838041468. The cubic root of 2113221023 is about 1283.2609364605.

Adding to 2113221023 its reverse (3201223112), we get a palindrome (5314444135).

The spelling of 2113221023 in words is "two billion, one hundred thirteen million, two hundred twenty-one thousand, twenty-three".