2111421323 has 6 divisors (see below), whose sum is σ = 2320818612. Its totient is φ = 1919473820.

The previous prime is 2111421307. The next prime is 2111421343. The reversal of 2111421323 is 3231241112.

It is not a de Polignac number, because 2111421323 - 2⁴ = 2111421307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111421295 and 2111421304.

It is not an unprimeable number, because it can be changed into a prime (2111421343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8724761 + ... + 8725002.

It is an arithmetic number, because the mean of its divisors is an integer number (386803102).

Almost surely, 2^2111421323 is an apocalyptic number.

2111421323 is a deficient number, since it is larger than the sum of its proper divisors (209397289).

2111421323 is a wasteful number, since it uses less digits than its factorization.

2111421323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17449785 (or 17449774 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2111421323 is about 45950.2048200005. The cubic root of 2111421323 is about 1282.8965416011.

Adding to 2111421323 its reverse (3231241112), we get a palindrome (5342662435).

The spelling of 2111421323 in words is "two billion, one hundred eleven million, four hundred twenty-one thousand, three hundred twenty-three".