1334240321 has 4 divisors (see below), whose sum is σ = 1342229952. Its totient is φ = 1326250692.

The previous prime is 1334240311. The next prime is 1334240339. The reversal of 1334240321 is 1230424331.

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: 1230424331 = 6481 ⋅189851.

It is a cyclic number.

It is not a de Polignac number, because 1334240321 - 2¹⁰ = 1334239297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1334240311) 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, 3994565 + ... + 3994898.

It is an arithmetic number, because the mean of its divisors is an integer number (335557488).

Almost surely, 2^1334240321 is an apocalyptic number.

It is an amenable number.

1334240321 is a deficient number, since it is larger than the sum of its proper divisors (7989631).

1334240321 is an equidigital number, since it uses as much as digits as its factorization.

1334240321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989630.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1334240321 is about 36527.2544957871. The cubic root of 1334240321 is about 1100.8919270052.

Adding to 1334240321 its reverse (1230424331), we get a palindrome (2564664652).

The spelling of 1334240321 in words is "one billion, three hundred thirty-four million, two hundred forty thousand, three hundred twenty-one".