30320211311021 has 4 divisors (see below), whose sum is σ = 30501769462752. Its totient is φ = 30138653159292.

The previous prime is 30320211311011. The next prime is 30320211311081. The reversal of 30320211311021 is 12011311202303.

It is a happy number.

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 30320211311021 - 2¹⁸ = 30320211048877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30320211310984 and 30320211311002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320211311011) 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, 90779075615 + ... + 90779075948.

It is an arithmetic number, because the mean of its divisors is an integer number (7625442365688).

Almost surely, 2^{30320211311021} is an apocalyptic number.

It is an amenable number.

30320211311021 is a deficient number, since it is larger than the sum of its proper divisors (181558151731).

30320211311021 is a wasteful number, since it uses less digits than its factorization.

30320211311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181558151730.

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

Adding to 30320211311021 its reverse (12011311202303), we get a palindrome (42331522513324).

The spelling of 30320211311021 in words is "thirty trillion, three hundred twenty billion, two hundred eleven million, three hundred eleven thousand, twenty-one".