2123421331 has 8 divisors (see below), whose sum is σ = 2152120320. Its totient is φ = 2094909768.

The previous prime is 2123421271. The next prime is 2123421359. The reversal of 2123421331 is 1331243212.

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 2123421331 - 2¹¹ = 2123419283 is a prime.

It is a super-2 number, since 2×2123421331² = 9017836297891623122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123421631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23971 + ... + 69436.

It is an arithmetic number, because the mean of its divisors is an integer number (269015040).

Almost surely, 2^2123421331 is an apocalyptic number.

2123421331 is a deficient number, since it is larger than the sum of its proper divisors (28698989).

2123421331 is a wasteful number, since it uses less digits than its factorization.

2123421331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93713.

The product of its digits is 864, while the sum is 22.

The square root of 2123421331 is about 46080.5960356417. The cubic root of 2123421331 is about 1285.3223476310.

Adding to 2123421331 its reverse (1331243212), we get a palindrome (3454664543).

The spelling of 2123421331 in words is "two billion, one hundred twenty-three million, four hundred twenty-one thousand, three hundred thirty-one".