1421445133321 has 4 divisors (see below), whose sum is σ = 1423842174612. Its totient is φ = 1419048092032.

The previous prime is 1421445133247. The next prime is 1421445133331. The reversal of 1421445133321 is 1233315441241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 278820961225 + 1142624172096 = 528035^2 + 1068936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421445133321 - 2¹³ = 1421445125129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421445133331) 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, 1198519756 + ... + 1198520941.

It is an arithmetic number, because the mean of its divisors is an integer number (355960543653).

Almost surely, 2^{1421445133321} is an apocalyptic number.

It is an amenable number.

1421445133321 is a deficient number, since it is larger than the sum of its proper divisors (2397041291).

1421445133321 is an equidigital number, since it uses as much as digits as its factorization.

1421445133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397041290.

The product of its digits is 34560, while the sum is 34.

The spelling of 1421445133321 in words is "one trillion, four hundred twenty-one billion, four hundred forty-five million, one hundred thirty-three thousand, three hundred twenty-one".