323211243431 has 4 divisors (see below), whose sum is σ = 323364353664. Its totient is φ = 323058133200.

The previous prime is 323211243427. The next prime is 323211243437. The reversal of 323211243431 is 134342112323.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 323211243431 - 2² = 323211243427 is a prime.

It is a super-2 number, since 2×323211243431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323211243394 and 323211243403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323211243437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76551950 + ... + 76556171.

It is an arithmetic number, because the mean of its divisors is an integer number (80841088416).

Almost surely, 2^323211243431 is an apocalyptic number.

323211243431 is a deficient number, since it is larger than the sum of its proper divisors (153110233).

323211243431 is a wasteful number, since it uses less digits than its factorization.

323211243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153110232.

The product of its digits is 10368, while the sum is 29.

Adding to 323211243431 its reverse (134342112323), we get a palindrome (457553355754).

The spelling of 323211243431 in words is "three hundred twenty-three billion, two hundred eleven million, two hundred forty-three thousand, four hundred thirty-one".