30020132311021 has 4 divisors (see below), whose sum is σ = 30059789025532. Its totient is φ = 29980475596512.

The previous prime is 30020132310977. The next prime is 30020132311061. The reversal of 30020132311021 is 12011323102003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6109108098921 + 23911024212100 = 2471661^2 + 4889890^2 .

It is a cyclic number.

It is not a de Polignac number, because 30020132311021 - 2¹³ = 30020132302829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30020132311021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020132311061) 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, 19828356120 + ... + 19828357633.

It is an arithmetic number, because the mean of its divisors is an integer number (7514947256383).

Almost surely, 2^{30020132311021} is an apocalyptic number.

It is an amenable number.

30020132311021 is a deficient number, since it is larger than the sum of its proper divisors (39656714511).

30020132311021 is an equidigital number, since it uses as much as digits as its factorization.

30020132311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39656714510.

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

Adding to 30020132311021 its reverse (12011323102003), we get a palindrome (42031455413024).

The spelling of 30020132311021 in words is "thirty trillion, twenty billion, one hundred thirty-two million, three hundred eleven thousand, twenty-one".