30545540321 has 2 divisors, whose sum is σ = 30545540322. Its totient is φ = 30545540320.

The previous prime is 30545540299. The next prime is 30545540353. The reversal of 30545540321 is 12304554503.

It is a happy number.

It is an a-pointer prime, because the next prime (30545540353) can be obtained adding 30545540321 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21908440225 + 8637100096 = 148015^2 + 92936^2 .

It is a cyclic number.

It is not a de Polignac number, because 30545540321 - 2³⁰ = 29471798497 is a prime.

It is not a weakly prime, because it can be changed into another prime (30545540021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15272770160 + 15272770161.

It is an arithmetic number, because the mean of its divisors is an integer number (15272770161).

Almost surely, 2^30545540321 is an apocalyptic number.

It is an amenable number.

30545540321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30545540321 is an equidigital number, since it uses as much as digits as its factorization.

30545540321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 30545540321 in words is "thirty billion, five hundred forty-five million, five hundred forty thousand, three hundred twenty-one".