30331021112021 has 16 divisors (see below), whose sum is σ = 35174885776128. Its totient is φ = 25615343443200.

The previous prime is 30331021112011. The next prime is 30331021112033. The reversal of 30331021112021 is 12021112013303.

It is a happy number.

It is not a de Polignac number, because 30331021112021 - 2¹⁴ = 30331021095637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30331021111984 and 30331021112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30331021112011) 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 in 15 ways as a sum of consecutive naturals, for example, 18876650 + ... + 20420331.

It is an arithmetic number, because the mean of its divisors is an integer number (2198430361008).

Almost surely, 2^{30331021112021} is an apocalyptic number.

It is an amenable number.

30331021112021 is a deficient number, since it is larger than the sum of its proper divisors (4843864664107).

30331021112021 is a wasteful number, since it uses less digits than its factorization.

30331021112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39298612.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30331021112021 its reverse (12021112013303), we get a palindrome (42352133125324).

The spelling of 30331021112021 in words is "thirty trillion, three hundred thirty-one billion, twenty-one million, one hundred twelve thousand, twenty-one".