30544254421 has 4 divisors (see below), whose sum is σ = 30562297612. Its totient is φ = 30526211232.

The previous prime is 30544254413. The next prime is 30544254487. The reversal of 30544254421 is 12445244503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12445244503 = 1097 ⋅11344799.

It can be written as a sum of positive squares in 2 ways, for example, as 5865415396 + 24678839025 = 76586^2 + 157095^2 .

It is a cyclic number.

It is not a de Polignac number, because 30544254421 - 2³ = 30544254413 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 (30544254121) 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, 9019056 + ... + 9022441.

It is an arithmetic number, because the mean of its divisors is an integer number (7640574403).

Almost surely, 2^30544254421 is an apocalyptic number.

It is an amenable number.

30544254421 is a deficient number, since it is larger than the sum of its proper divisors (18043191).

30544254421 is a wasteful number, since it uses less digits than its factorization.

30544254421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18043190.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 30544254421 its reverse (12445244503), we get a palindrome (42989498924).

The spelling of 30544254421 in words is "thirty billion, five hundred forty-four million, two hundred fifty-four thousand, four hundred twenty-one".