431213033 has 4 divisors (see below), whose sum is σ = 437286528. Its totient is φ = 425139540.

The previous prime is 431213021. The next prime is 431213051. The reversal of 431213033 is 330312134.

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: 330312134 = 2 ⋅165156067.

It is a cyclic number.

It is not a de Polignac number, because 431213033 - 2¹⁰ = 431212009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431212996 and 431213014.

It is not an unprimeable number, because it can be changed into a prime (431213833) 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 3 ways as a sum of consecutive naturals, for example, 3036641 + ... + 3036782.

It is an arithmetic number, because the mean of its divisors is an integer number (109321632).

Almost surely, 2^431213033 is an apocalyptic number.

It is an amenable number.

431213033 is a deficient number, since it is larger than the sum of its proper divisors (6073495).

431213033 is an equidigital number, since it uses as much as digits as its factorization.

431213033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073494.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 431213033 is about 20765.6695774540. The cubic root of 431213033 is about 755.4933155966.

Adding to 431213033 its reverse (330312134), we get a palindrome (761525167).

The spelling of 431213033 in words is "four hundred thirty-one million, two hundred thirteen thousand, thirty-three".