30121236421633 has 8 divisors (see below), whose sum is σ = 34503771978368. Its totient is φ = 25758576310464.

The previous prime is 30121236421489. The next prime is 30121236421691. The reversal of 30121236421633 is 33612463212103.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30121236421633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30121236421592 and 30121236421601.

It is not an unprimeable number, because it can be changed into a prime (30121236421933) 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, 4968858141 + ... + 4968864202.

It is an arithmetic number, because the mean of its divisors is an integer number (4312971497296).

Almost surely, 2^{30121236421633} is an apocalyptic number.

It is an amenable number.

30121236421633 is a deficient number, since it is larger than the sum of its proper divisors (4382535556735).

30121236421633 is an equidigital number, since it uses as much as digits as its factorization.

30121236421633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937722783.

The product of its (nonzero) digits is 93312, while the sum is 37.

Adding to 30121236421633 its reverse (33612463212103), we get a palindrome (63733699633736).

The spelling of 30121236421633 in words is "thirty trillion, one hundred twenty-one billion, two hundred thirty-six million, four hundred twenty-one thousand, six hundred thirty-three".