1342064021 has 2 divisors, whose sum is σ = 1342064022. Its totient is φ = 1342064020.

The previous prime is 1342063979. The next prime is 1342064033. The reversal of 1342064021 is 1204602431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1334440900 + 7623121 = 36530^2 + 2761^2 .

It is an emirp because it is prime and its reverse (1204602431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342064021 is a prime.

It is a super-2 number, since 2×1342064021² = 3602271672925376882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342064051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671032010 + 671032011.

It is an arithmetic number, because the mean of its divisors is an integer number (671032011).

Almost surely, 2^1342064021 is an apocalyptic number.

It is an amenable number.

1342064021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342064021 is an equidigital number, since it uses as much as digits as its factorization.

1342064021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1342064021 is about 36634.1919659763. The cubic root of 1342064021 is about 1103.0395330596.

Adding to 1342064021 its reverse (1204602431), we get a palindrome (2546666452).

The spelling of 1342064021 in words is "one billion, three hundred forty-two million, sixty-four thousand, twenty-one".