30984258421 has 4 divisors (see below), whose sum is σ = 30984865600. Its totient is φ = 30983651244.

The previous prime is 30984258377. The next prime is 30984258439. The reversal of 30984258421 is 12485248903.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12485248903 = 293 ⋅42611771.

It is a cyclic number.

It is not a de Polignac number, because 30984258421 - 2¹³ = 30984250229 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 (30984258451) 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, 219231 + ... + 331708.

It is an arithmetic number, because the mean of its divisors is an integer number (7746216400).

Almost surely, 2^30984258421 is an apocalyptic number.

It is an amenable number.

30984258421 is a deficient number, since it is larger than the sum of its proper divisors (607179).

30984258421 is an equidigital number, since it uses as much as digits as its factorization.

30984258421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607178.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 30984258421 in words is "thirty billion, nine hundred eighty-four million, two hundred fifty-eight thousand, four hundred twenty-one".