30032232421 has 4 divisors (see below), whose sum is σ = 31001014144. Its totient is φ = 29063450700.

The previous prime is 30032232413. The next prime is 30032232427. The reversal of 30032232421 is 12423223003.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12423223003 = 461 ⋅26948423.

It is a cyclic number.

It is not a de Polignac number, because 30032232421 - 2³ = 30032232413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30032232392 and 30032232401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032232427) 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, 484390815 + ... + 484390876.

It is an arithmetic number, because the mean of its divisors is an integer number (7750253536).

Almost surely, 2^30032232421 is an apocalyptic number.

30032232421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30032232421 is a deficient number, since it is larger than the sum of its proper divisors (968781723).

30032232421 is an equidigital number, since it uses as much as digits as its factorization.

30032232421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968781722.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30032232421 its reverse (12423223003), we get a palindrome (42455455424).

The spelling of 30032232421 in words is "thirty billion, thirty-two million, two hundred thirty-two thousand, four hundred twenty-one".