30520851000149 has 2 divisors, whose sum is σ = 30520851000150. Its totient is φ = 30520851000148.

The previous prime is 30520851000061. The next prime is 30520851000193. The reversal of 30520851000149 is 94100015802503.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20358080832049 + 10162770168100 = 4511993^2 + 3187910^2 .

It is an emirp because it is prime and its reverse (94100015802503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30520851000149 - 2⁸ = 30520850999893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30520851000949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260425500074 + 15260425500075.

It is an arithmetic number, because the mean of its divisors is an integer number (15260425500075).

Almost surely, 2^{30520851000149} is an apocalyptic number.

It is an amenable number.

30520851000149 is a deficient number, since it is larger than the sum of its proper divisors (1).

30520851000149 is an equidigital number, since it uses as much as digits as its factorization.

30520851000149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 30520851000149 in words is "thirty trillion, five hundred twenty billion, eight hundred fifty-one million, one hundred forty-nine", and thus it is an aban number.