30032135621 has 16 divisors (see below), whose sum is σ = 33188859648. Its totient is φ = 27030432000.

The previous prime is 30032135611. The next prime is 30032135647. The reversal of 30032135621 is 12653123003.

It is a cyclic number.

It is not a de Polignac number, because 30032135621 - 2¹⁴ = 30032119237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032135611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3350696 + ... + 3359646.

It is an arithmetic number, because the mean of its divisors is an integer number (2074303728).

Almost surely, 2^30032135621 is an apocalyptic number.

It is an amenable number.

30032135621 is a deficient number, since it is larger than the sum of its proper divisors (3156724027).

30032135621 is a wasteful number, since it uses less digits than its factorization.

30032135621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17572.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 30032135621 its reverse (12653123003), we get a palindrome (42685258624).

The spelling of 30032135621 in words is "thirty billion, thirty-two million, one hundred thirty-five thousand, six hundred twenty-one".