30013021221031 has 2 divisors, whose sum is σ = 30013021221032. Its totient is φ = 30013021221030.

The previous prime is 30013021220983. The next prime is 30013021221103. The reversal of 30013021221031 is 13012212031003.

Together with next prime (30013021221103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30013021221031 - 2¹⁵ = 30013021188263 is a prime.

It is a super-2 number, since 2×30013021221031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30013021224031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006510610515 + 15006510610516.

It is an arithmetic number, because the mean of its divisors is an integer number (15006510610516).

Almost surely, 2^{30013021221031} is an apocalyptic number.

30013021221031 is a deficient number, since it is larger than the sum of its proper divisors (1).

30013021221031 is an equidigital number, since it uses as much as digits as its factorization.

30013021221031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30013021221031 its reverse (13012212031003), we get a palindrome (43025233252034).

The spelling of 30013021221031 in words is "thirty trillion, thirteen billion, twenty-one million, two hundred twenty-one thousand, thirty-one".