30001311021197 has 2 divisors, whose sum is σ = 30001311021198. Its totient is φ = 30001311021196.

The previous prime is 30001311021139. The next prime is 30001311021307. The reversal of 30001311021197 is 79112011310003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25750205185156 + 4251105836041 = 5074466^2 + 2061821^2 .

It is a cyclic number.

It is not a de Polignac number, because 30001311021197 - 2¹⁰ = 30001311020173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30001311021107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000655510598 + 15000655510599.

It is an arithmetic number, because the mean of its divisors is an integer number (15000655510599).

Almost surely, 2^{30001311021197} is an apocalyptic number.

It is an amenable number.

30001311021197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30001311021197 is an equidigital number, since it uses as much as digits as its factorization.

30001311021197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

The spelling of 30001311021197 in words is "thirty trillion, one billion, three hundred eleven million, twenty-one thousand, one hundred ninety-seven".