30121421242133 has 8 divisors (see below), whose sum is σ = 32580106284600. Its totient is φ = 27682972291008.

The previous prime is 30121421242117. The next prime is 30121421242139. The reversal of 30121421242133 is 33124212412103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6973708445284 + 23147712796849 = 2640778^2 + 4811207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30121421242133 - 2⁴ = 30121421242117 is a prime.

It is a super-2 number, since 2×30121421242133² (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 = 30121421242096 and 30121421242105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121421242139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5059019738 + ... + 5059025691.

It is an arithmetic number, because the mean of its divisors is an integer number (4072513285575).

Almost surely, 2^{30121421242133} is an apocalyptic number.

It is an amenable number.

30121421242133 is a deficient number, since it is larger than the sum of its proper divisors (2458685042467).

30121421242133 is a wasteful number, since it uses less digits than its factorization.

30121421242133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118045671.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 30121421242133 its reverse (33124212412103), we get a palindrome (63245633654236).

The spelling of 30121421242133 in words is "thirty trillion, one hundred twenty-one billion, four hundred twenty-one million, two hundred forty-two thousand, one hundred thirty-three".