212431103431433 has 4 divisors (see below), whose sum is σ = 212431160538240. Its totient is φ = 212431046324628.

The previous prime is 212431103431403. The next prime is 212431103431439. The reversal of 212431103431433 is 334134301134212.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212431103431433 is a prime.

It is a super-3 number, since 3×212431103431433³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212431103431393 and 212431103431402.

It is not an unprimeable number, because it can be changed into a prime (212431103431439) 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, 22553285 + ... + 30553442.

It is an arithmetic number, because the mean of its divisors is an integer number (53107790134560).

Almost surely, 2^{212431103431433} is an apocalyptic number.

It is an amenable number.

212431103431433 is a deficient number, since it is larger than the sum of its proper divisors (57106807).

212431103431433 is an equidigital number, since it uses as much as digits as its factorization.

212431103431433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57106806.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 212431103431433 its reverse (334134301134212), we get a palindrome (546565404565645).

The spelling of 212431103431433 in words is "two hundred twelve trillion, four hundred thirty-one billion, one hundred three million, four hundred thirty-one thousand, four hundred thirty-three".