1342440033421 has 2 divisors, whose sum is σ = 1342440033422. Its totient is φ = 1342440033420.

The previous prime is 1342440033373. The next prime is 1342440033511. The reversal of 1342440033421 is 1243300442431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 822130277796 + 520309755625 = 906714^2 + 721325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342440033421 - 2²⁵ = 1342406478989 is a prime.

It is a super-4 number, since 4×1342440033421⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342440073421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671220016710 + 671220016711.

It is an arithmetic number, because the mean of its divisors is an integer number (671220016711).

Almost surely, 2^{1342440033421} is an apocalyptic number.

It is an amenable number.

1342440033421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342440033421 is an equidigital number, since it uses as much as digits as its factorization.

1342440033421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1342440033421 its reverse (1243300442431), we get a palindrome (2585740475852).

The spelling of 1342440033421 in words is "one trillion, three hundred forty-two billion, four hundred forty million, thirty-three thousand, four hundred twenty-one".