30031189553 has 2 divisors, whose sum is σ = 30031189554. Its totient is φ = 30031189552.

The previous prime is 30031189549. The next prime is 30031189577. The reversal of 30031189553 is 35598113003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29183913889 + 847275664 = 170833^2 + 29108^2 .

It is a cyclic number.

It is not a de Polignac number, because 30031189553 - 2² = 30031189549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30031189583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015594776 + 15015594777.

It is an arithmetic number, because the mean of its divisors is an integer number (15015594777).

Almost surely, 2^30031189553 is an apocalyptic number.

It is an amenable number.

30031189553 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031189553 is an equidigital number, since it uses as much as digits as its factorization.

30031189553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 30031189553 in words is "thirty billion, thirty-one million, one hundred eighty-nine thousand, five hundred fifty-three".