1351230533321 has 4 divisors (see below), whose sum is σ = 1351232973072. Its totient is φ = 1351228093572.

The previous prime is 1351230533297. The next prime is 1351230533333. The reversal of 1351230533321 is 1233350321531.

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 1351230533321 - 2³⁴ = 1334050664137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351230533381) 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, 55010 + ... + 1644836.

It is an arithmetic number, because the mean of its divisors is an integer number (337808243268).

Almost surely, 2^{1351230533321} is an apocalyptic number.

It is an amenable number.

1351230533321 is a deficient number, since it is larger than the sum of its proper divisors (2439751).

1351230533321 is an equidigital number, since it uses as much as digits as its factorization.

1351230533321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439750.

The product of its (nonzero) digits is 24300, while the sum is 32.

Adding to 1351230533321 its reverse (1233350321531), we get a palindrome (2584580854852).

The spelling of 1351230533321 in words is "one trillion, three hundred fifty-one billion, two hundred thirty million, five hundred thirty-three thousand, three hundred twenty-one".