2023131421 has 4 divisors (see below), whose sum is σ = 2023235932. Its totient is φ = 2023026912.

The previous prime is 2023131413. The next prime is 2023131431. The reversal of 2023131421 is 1241313202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 298805796 + 1724325625 = 17286^2 + 41525^2 .

It is a cyclic number.

It is not a de Polignac number, because 2023131421 - 2³ = 2023131413 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 (2023131431) 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, 13770 + ... + 65083.

It is an arithmetic number, because the mean of its divisors is an integer number (505808983).

Almost surely, 2^2023131421 is an apocalyptic number.

It is an amenable number.

2023131421 is a deficient number, since it is larger than the sum of its proper divisors (104511).

2023131421 is an equidigital number, since it uses as much as digits as its factorization.

2023131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104510.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2023131421 is about 44979.2332193425. The cubic root of 2023131421 is about 1264.7597373168.

Adding to 2023131421 its reverse (1241313202), we get a palindrome (3264444623).

The spelling of 2023131421 in words is "two billion, twenty-three million, one hundred thirty-one thousand, four hundred twenty-one".