30512101 has 2 divisors, whose sum is σ = 30512102. Its totient is φ = 30512100.

The previous prime is 30512063. The next prime is 30512107. The reversal of 30512101 is 10121503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22944100 + 7568001 = 4790^2 + 2751^2 .

It is a cyclic number.

It is not a de Polignac number, because 30512101 - 2⁹ = 30511589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30512107) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15256050 + 15256051.

It is an arithmetic number, because the mean of its divisors is an integer number (15256051).

Almost surely, 2^30512101 is an apocalyptic number.

It is an amenable number.

30512101 is a deficient number, since it is larger than the sum of its proper divisors (1).

30512101 is an equidigital number, since it uses as much as digits as its factorization.

30512101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 30512101 is about 5523.7759730098. The cubic root of 30512101 is about 312.4813036281.

Adding to 30512101 its reverse (10121503), we get a palindrome (40633604).

The spelling of 30512101 in words is "thirty million, five hundred twelve thousand, one hundred one".