30321421349 has 4 divisors (see below), whose sum is σ = 30325194636. Its totient is φ = 30317648064.

The previous prime is 30321421343. The next prime is 30321421367. The reversal of 30321421349 is 94312412303.

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 18011518849 + 12309902500 = 134207^2 + 110950^2 .

It is a cyclic number.

It is not a de Polignac number, because 30321421349 - 2¹² = 30321417253 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 (30321421343) 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, 1874564 + ... + 1890669.

It is an arithmetic number, because the mean of its divisors is an integer number (7581298659).

Almost surely, 2^30321421349 is an apocalyptic number.

It is an amenable number.

30321421349 is a deficient number, since it is larger than the sum of its proper divisors (3773287).

30321421349 is an equidigital number, since it uses as much as digits as its factorization.

30321421349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773286.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 30321421349 in words is "thirty billion, three hundred twenty-one million, four hundred twenty-one thousand, three hundred forty-nine".