30530122451 has 4 divisors (see below), whose sum is σ = 30643617600. Its totient is φ = 30416627304.

The previous prime is 30530122439. The next prime is 30530122457. The reversal of 30530122451 is 15422103503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15422103503 = 17 ⋅907182559.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30530122451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30530122451.

It is not an unprimeable number, because it can be changed into a prime (30530122457) 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, 56747171 + ... + 56747708.

It is an arithmetic number, because the mean of its divisors is an integer number (7660904400).

Almost surely, 2^30530122451 is an apocalyptic number.

30530122451 is a deficient number, since it is larger than the sum of its proper divisors (113495149).

30530122451 is a wasteful number, since it uses less digits than its factorization.

30530122451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113495148.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 30530122451 its reverse (15422103503), we get a palindrome (45952225954).

The spelling of 30530122451 in words is "thirty billion, five hundred thirty million, one hundred twenty-two thousand, four hundred fifty-one".