30013121219 has 2 divisors, whose sum is σ = 30013121220. Its totient is φ = 30013121218.

The previous prime is 30013121191. The next prime is 30013121249. The reversal of 30013121219 is 91212131003.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30013121219 is a prime.

It is a super-2 number, since 2×30013121219² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30013121194 and 30013121203.

It is not a weakly prime, because it can be changed into another prime (30013121249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006560609 + 15006560610.

It is an arithmetic number, because the mean of its divisors is an integer number (15006560610).

Almost surely, 2^30013121219 is an apocalyptic number.

30013121219 is a deficient number, since it is larger than the sum of its proper divisors (1).

30013121219 is an equidigital number, since it uses as much as digits as its factorization.

30013121219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 30013121219 in words is "thirty billion, thirteen million, one hundred twenty-one thousand, two hundred nineteen".