1342132021 has 2 divisors, whose sum is σ = 1342132022. Its totient is φ = 1342132020.

The previous prime is 1342132019. The next prime is 1342132069. The reversal of 1342132021 is 1202312431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1340658225 + 1473796 = 36615^2 + 1214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342132021 - 2¹ = 1342132019 is a prime.

Together with 1342132019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1342132021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342172021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671066010 + 671066011.

It is an arithmetic number, because the mean of its divisors is an integer number (671066011).

Almost surely, 2^1342132021 is an apocalyptic number.

It is an amenable number.

1342132021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342132021 is an equidigital number, since it uses as much as digits as its factorization.

1342132021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1342132021 is about 36635.1200489366. The cubic root of 1342132021 is about 1103.0581624296.

Adding to 1342132021 its reverse (1202312431), we get a palindrome (2544444452).

The spelling of 1342132021 in words is "one billion, three hundred forty-two million, one hundred thirty-two thousand, twenty-one".