304134422021 has 4 divisors (see below), whose sum is σ = 304448936352. Its totient is φ = 303819907692.

The previous prime is 304134421999. The next prime is 304134422113. The reversal of 304134422021 is 120224431403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 304134422021 - 2³⁴ = 286954552837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304134422621) 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, 157255715 + ... + 157257648.

It is an arithmetic number, because the mean of its divisors is an integer number (76112234088).

Almost surely, 2^304134422021 is an apocalyptic number.

It is an amenable number.

304134422021 is a deficient number, since it is larger than the sum of its proper divisors (314514331).

304134422021 is an equidigital number, since it uses as much as digits as its factorization.

304134422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314514330.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 304134422021 its reverse (120224431403), we get a palindrome (424358853424).

The spelling of 304134422021 in words is "three hundred four billion, one hundred thirty-four million, four hundred twenty-two thousand, twenty-one".