30101332021 has 4 divisors (see below), whose sum is σ = 30172832044. Its totient is φ = 30029832000.

The previous prime is 30101332007. The next prime is 30101332061. The reversal of 30101332021 is 12023310103.

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 4912467921 + 25188864100 = 70089^2 + 158710^2 .

It is a cyclic number.

It is not a de Polignac number, because 30101332021 - 2⁷ = 30101331893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30101331986 and 30101332004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101332061) 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, 35749380 + ... + 35750221.

It is an arithmetic number, because the mean of its divisors is an integer number (7543208011).

Almost surely, 2^30101332021 is an apocalyptic number.

It is an amenable number.

30101332021 is a deficient number, since it is larger than the sum of its proper divisors (71500023).

30101332021 is an equidigital number, since it uses as much as digits as its factorization.

30101332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71500022.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30101332021 its reverse (12023310103), we get a palindrome (42124642124).

The spelling of 30101332021 in words is "thirty billion, one hundred one million, three hundred thirty-two thousand, twenty-one".