1421443331331 has 8 divisors (see below), whose sum is σ = 1898205301440. Its totient is φ = 946155124392.

The previous prime is 1421443331317. The next prime is 1421443331339. The reversal of 1421443331331 is 1331333441241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421443331331 - 2¹¹ = 1421443329283 is a prime.

It is a super-2 number, since 2×1421443331331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1421443331292 and 1421443331301.

It is not an unprimeable number, because it can be changed into a prime (1421443331339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368438541 + ... + 368442398.

It is an arithmetic number, because the mean of its divisors is an integer number (237275662680).

Almost surely, 2^{1421443331331} is an apocalyptic number.

1421443331331 is a deficient number, since it is larger than the sum of its proper divisors (476761970109).

1421443331331 is an equidigital number, since it uses as much as digits as its factorization.

1421443331331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736881585.

The product of its digits is 31104, while the sum is 33.

Adding to 1421443331331 its reverse (1331333441241), we get a palindrome (2752776772572).

The spelling of 1421443331331 in words is "one trillion, four hundred twenty-one billion, four hundred forty-three million, three hundred thirty-one thousand, three hundred thirty-one".