2033131421 has 4 divisors (see below), whose sum is σ = 2039274144. Its totient is φ = 2026988700.

The previous prime is 2033131417. The next prime is 2033131427. The reversal of 2033131421 is 1241313302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1241313302 = 2 ⋅620656651.

It is a cyclic number.

It is not a de Polignac number, because 2033131421 - 2² = 2033131417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2033131393 and 2033131402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2033131427) 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, 3070865 + ... + 3071526.

It is an arithmetic number, because the mean of its divisors is an integer number (509818536).

Almost surely, 2^2033131421 is an apocalyptic number.

It is an amenable number.

2033131421 is a deficient number, since it is larger than the sum of its proper divisors (6142723).

2033131421 is an equidigital number, since it uses as much as digits as its factorization.

2033131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142722.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2033131421 is about 45090.2586042706. The cubic root of 2033131421 is about 1266.8401452688.

Adding to 2033131421 its reverse (1241313302), we get a palindrome (3274444723).

The spelling of 2033131421 in words is "two billion, thirty-three million, one hundred thirty-one thousand, four hundred twenty-one".