30232132133221 has 2 divisors, whose sum is σ = 30232132133222. Its totient is φ = 30232132133220.

The previous prime is 30232132133209. The next prime is 30232132133249. The reversal of 30232132133221 is 12233123123203.

It is a happy number.

It is an a-pointer prime, because the next prime (30232132133249) can be obtained adding 30232132133221 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26667040592196 + 3565091541025 = 5164014^2 + 1888145^2 .

It is a cyclic number.

It is not a de Polignac number, because 30232132133221 - 2¹⁹ = 30232131608933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30232132133221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30232132133321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116066066610 + 15116066066611.

It is an arithmetic number, because the mean of its divisors is an integer number (15116066066611).

Almost surely, 2^{30232132133221} is an apocalyptic number.

It is an amenable number.

30232132133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30232132133221 is an equidigital number, since it uses as much as digits as its factorization.

30232132133221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 30232132133221 its reverse (12233123123203), we get a palindrome (42465255256424).

The spelling of 30232132133221 in words is "thirty trillion, two hundred thirty-two billion, one hundred thirty-two million, one hundred thirty-three thousand, two hundred twenty-one".