342003224021 has 4 divisors (see below), whose sum is σ = 342004583532. Its totient is φ = 342001864512.

The previous prime is 342003223987. The next prime is 342003224033. The reversal of 342003224021 is 120422300243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 279588195121 + 62415028900 = 528761^2 + 249830^2 .

It is a cyclic number.

It is not a de Polignac number, because 342003224021 - 2⁶ = 342003223957 is a prime.

It is a super-2 number, since 2×342003224021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342003224051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179876 + ... + 846381.

It is an arithmetic number, because the mean of its divisors is an integer number (85501145883).

Almost surely, 2^342003224021 is an apocalyptic number.

It is an amenable number.

342003224021 is a deficient number, since it is larger than the sum of its proper divisors (1359511).

342003224021 is a wasteful number, since it uses less digits than its factorization.

342003224021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359510.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 342003224021 its reverse (120422300243), we get a palindrome (462425524264).

The spelling of 342003224021 in words is "three hundred forty-two billion, three million, two hundred twenty-four thousand, twenty-one".