331424211403421 has 4 divisors (see below), whose sum is σ = 331424665185600. Its totient is φ = 331423757621244.

The previous prime is 331424211403387. The next prime is 331424211403541. The reversal of 331424211403421 is 124304112424133.

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 331424211403421 - 2¹⁴ = 331424211387037 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 (331424211403721) 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, 225793781 + ... + 227256858.

It is an arithmetic number, because the mean of its divisors is an integer number (82856166296400).

Almost surely, 2^{331424211403421} is an apocalyptic number.

It is an amenable number.

331424211403421 is a deficient number, since it is larger than the sum of its proper divisors (453782179).

331424211403421 is an equidigital number, since it uses as much as digits as its factorization.

331424211403421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453782178.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 331424211403421 its reverse (124304112424133), we get a palindrome (455728323827554).

The spelling of 331424211403421 in words is "three hundred thirty-one trillion, four hundred twenty-four billion, two hundred eleven million, four hundred three thousand, four hundred twenty-one".