30104051155421 has 4 divisors (see below), whose sum is σ = 30104164156092. Its totient is φ = 30103938154752.

The previous prime is 30104051155393. The next prime is 30104051155457. The reversal of 30104051155421 is 12455115040103.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20536078305625 + 9567972849796 = 4531675^2 + 3093214^2 .

It is a cyclic number.

It is not a de Polignac number, because 30104051155421 - 2³⁸ = 29829173248477 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 (30104051155481) 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, 56099780 + ... + 56633853.

It is an arithmetic number, because the mean of its divisors is an integer number (7526041039023).

Almost surely, 2^{30104051155421} is an apocalyptic number.

It is an amenable number.

30104051155421 is a deficient number, since it is larger than the sum of its proper divisors (113000671).

30104051155421 is a wasteful number, since it uses less digits than its factorization.

30104051155421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113000670.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 30104051155421 its reverse (12455115040103), we get a palindrome (42559166195524).

The spelling of 30104051155421 in words is "thirty trillion, one hundred four billion, fifty-one million, one hundred fifty-five thousand, four hundred twenty-one".