30420242421043 has 4 divisors (see below), whose sum is σ = 30423272637520. Its totient is φ = 30417212204568.

The previous prime is 30420242421013. The next prime is 30420242421047. The reversal of 30420242421043 is 34012424202403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30420242421043 - 2¹⁷ = 30420242289971 is a prime.

It is a super-2 number, since 2×30420242421043² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30420242420996 and 30420242421014.

It is not an unprimeable number, because it can be changed into a prime (30420242421047) 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, 1515093180 + ... + 1515113257.

It is an arithmetic number, because the mean of its divisors is an integer number (7605818159380).

Almost surely, 2^{30420242421043} is an apocalyptic number.

30420242421043 is a deficient number, since it is larger than the sum of its proper divisors (3030216477).

30420242421043 is a wasteful number, since it uses less digits than its factorization.

30420242421043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030216476.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 30420242421043 its reverse (34012424202403), we get a palindrome (64432666623446).

The spelling of 30420242421043 in words is "thirty trillion, four hundred twenty billion, two hundred forty-two million, four hundred twenty-one thousand, forty-three".