30211113133021 has 4 divisors (see below), whose sum is σ = 30211153410592. Its totient is φ = 30211072855452.

The previous prime is 30211113133013. The next prime is 30211113133051. The reversal of 30211113133021 is 12033131111203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30211113133021 - 2³ = 30211113133013 is a prime.

It is a super-2 number, since 2×30211113133021² (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 = 30211113132983 and 30211113133001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211113133051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18991905 + ... + 20521078.

It is an arithmetic number, because the mean of its divisors is an integer number (7552788352648).

Almost surely, 2^{30211113133021} is an apocalyptic number.

It is an amenable number.

30211113133021 is a deficient number, since it is larger than the sum of its proper divisors (40277571).

30211113133021 is an equidigital number, since it uses as much as digits as its factorization.

30211113133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40277570.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 30211113133021 its reverse (12033131111203), we get a palindrome (42244244244224).

The spelling of 30211113133021 in words is "thirty trillion, two hundred eleven billion, one hundred thirteen million, one hundred thirty-three thousand, twenty-one".