1034342021 has 2 divisors, whose sum is σ = 1034342022. Its totient is φ = 1034342020.

The previous prime is 1034342009. The next prime is 1034342041. The reversal of 1034342021 is 1202434301.

It is an a-pointer prime, because the next prime (1034342041) can be obtained adding 1034342021 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1034329921 + 12100 = 32161^2 + 110^2 .

It is an emirp because it is prime and its reverse (1202434301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1034342021 - 2²² = 1030147717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1034341984 and 1034342002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1034342041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 517171010 + 517171011.

It is an arithmetic number, because the mean of its divisors is an integer number (517171011).

Almost surely, 2^1034342021 is an apocalyptic number.

It is an amenable number.

1034342021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1034342021 is an equidigital number, since it uses as much as digits as its factorization.

1034342021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1034342021 is about 32161.1881154910. The cubic root of 1034342021 is about 1011.3187430267.

Adding to 1034342021 its reverse (1202434301), we get a palindrome (2236776322).

The spelling of 1034342021 in words is "one billion, thirty-four million, three hundred forty-two thousand, twenty-one".