1342251005321 has 2 divisors, whose sum is σ = 1342251005322. Its totient is φ = 1342251005320.

The previous prime is 1342251005311. The next prime is 1342251005323. The reversal of 1342251005321 is 1235001522431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1062113686921 + 280137318400 = 1030589^2 + 529280^2 .

It is an emirp because it is prime and its reverse (1235001522431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1342251005321 - 2¹⁴ = 1342250988937 is a prime.

It is a super-2 number, since 2×1342251005321² (a number of 25 digits) contains 22 as substring.

Together with 1342251005323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1342251005323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671125502660 + 671125502661.

It is an arithmetic number, because the mean of its divisors is an integer number (671125502661).

Almost surely, 2^{1342251005321} is an apocalyptic number.

It is an amenable number.

1342251005321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342251005321 is an equidigital number, since it uses as much as digits as its factorization.

1342251005321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1342251005321 its reverse (1235001522431), we get a palindrome (2577252527752).

The spelling of 1342251005321 in words is "one trillion, three hundred forty-two billion, two hundred fifty-one million, five thousand, three hundred twenty-one".