30101121173 has 2 divisors, whose sum is σ = 30101121174. Its totient is φ = 30101121172.

The previous prime is 30101121161. The next prime is 30101121227. The reversal of 30101121173 is 37112110103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20637333649 + 9463787524 = 143657^2 + 97282^2 .

It is a cyclic number.

It is not a de Polignac number, because 30101121173 - 2⁴ = 30101121157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30101121473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15050560586 + 15050560587.

It is an arithmetic number, because the mean of its divisors is an integer number (15050560587).

Almost surely, 2^30101121173 is an apocalyptic number.

It is an amenable number.

30101121173 is a deficient number, since it is larger than the sum of its proper divisors (1).

30101121173 is an equidigital number, since it uses as much as digits as its factorization.

30101121173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

Adding to 30101121173 its reverse (37112110103), we get a palindrome (67213231276).

The spelling of 30101121173 in words is "thirty billion, one hundred one million, one hundred twenty-one thousand, one hundred seventy-three".