323111421421 has 4 divisors (see below), whose sum is σ = 323115260992. Its totient is φ = 323107581852.

The previous prime is 323111421361. The next prime is 323111421427. The reversal of 323111421421 is 124124111323.

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 not a de Polignac number, because 323111421421 - 2¹⁵ = 323111388653 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 (323111421427) 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, 1790661 + ... + 1962826.

It is an arithmetic number, because the mean of its divisors is an integer number (80778815248).

Almost surely, 2^323111421421 is an apocalyptic number.

It is an amenable number.

323111421421 is a deficient number, since it is larger than the sum of its proper divisors (3839571).

323111421421 is an equidigital number, since it uses as much as digits as its factorization.

323111421421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839570.

The product of its digits is 1152, while the sum is 25.

Adding to 323111421421 its reverse (124124111323), we get a palindrome (447235532744).

The spelling of 323111421421 in words is "three hundred twenty-three billion, one hundred eleven million, four hundred twenty-one thousand, four hundred twenty-one".