30405424051 has 4 divisors (see below), whose sum is σ = 30523733352. Its totient is φ = 30287114752.

The previous prime is 30405424043. The next prime is 30405424073. The reversal of 30405424051 is 15042450403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15042450403 = 15233 ⋅987491.

It is a cyclic number.

It is not a de Polignac number, because 30405424051 - 2³ = 30405424043 is a prime.

It is a super-2 number, since 2×30405424051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30405424081) 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, 59154265 + ... + 59154778.

It is an arithmetic number, because the mean of its divisors is an integer number (7630933338).

Almost surely, 2^30405424051 is an apocalyptic number.

30405424051 is a deficient number, since it is larger than the sum of its proper divisors (118309301).

30405424051 is a wasteful number, since it uses less digits than its factorization.

30405424051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118309300.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 30405424051 its reverse (15042450403), we get a palindrome (45447874454).

The spelling of 30405424051 in words is "thirty billion, four hundred five million, four hundred twenty-four thousand, fifty-one".