30332233021 has 4 divisors (see below), whose sum is σ = 30450257532. Its totient is φ = 30214208512.

The previous prime is 30332233007. The next prime is 30332233027. The reversal of 30332233021 is 12033223303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12033223303 = 727 ⋅16551889.

It can be written as a sum of positive squares in 2 ways, for example, as 30133140921 + 199092100 = 173589^2 + 14110^2 .

It is a cyclic number.

It is not a de Polignac number, because 30332233021 - 2¹³ = 30332224829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30332232983 and 30332233001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30332233027) 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, 59011870 + ... + 59012383.

It is an arithmetic number, because the mean of its divisors is an integer number (7612564383).

Almost surely, 2^30332233021 is an apocalyptic number.

It is an amenable number.

30332233021 is a deficient number, since it is larger than the sum of its proper divisors (118024511).

30332233021 is a wasteful number, since it uses less digits than its factorization.

30332233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118024510.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 30332233021 its reverse (12033223303), we get a palindrome (42365456324).

It can be divided in two parts, 3033223302 and 1, that added together give a palindrome (3033223303).

The spelling of 30332233021 in words is "thirty billion, three hundred thirty-two million, two hundred thirty-three thousand, twenty-one".