2031421133 has 4 divisors (see below), whose sum is σ = 2321624160. Its totient is φ = 1741218108.

The previous prime is 2031421127. The next prime is 2031421163. The reversal of 2031421133 is 3311241302.

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.

It is not a de Polignac number, because 2031421133 - 2⁸ = 2031420877 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 (2031421123) 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, 145101503 + ... + 145101516.

It is an arithmetic number, because the mean of its divisors is an integer number (580406040).

Almost surely, 2^2031421133 is an apocalyptic number.

It is an amenable number.

2031421133 is a deficient number, since it is larger than the sum of its proper divisors (290203027).

2031421133 is an equidigital number, since it uses as much as digits as its factorization.

2031421133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290203026.

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

The square root of 2031421133 is about 45071.2894534869. The cubic root of 2031421133 is about 1266.4848199320.

Adding to 2031421133 its reverse (3311241302), we get a palindrome (5342662435).

The spelling of 2031421133 in words is "two billion, thirty-one million, four hundred twenty-one thousand, one hundred thirty-three".