30523722149 has 2 divisors, whose sum is σ = 30523722150. Its totient is φ = 30523722148.

The previous prime is 30523722133. The next prime is 30523722223. The reversal of 30523722149 is 94122732503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20083991524 + 10439730625 = 141718^2 + 102175^2 .

It is an emirp because it is prime and its reverse (94122732503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30523722149 - 2⁴ = 30523722133 is a prime.

It is a super-2 number, since 2×30523722149² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30523727149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15261861074 + 15261861075.

It is an arithmetic number, because the mean of its divisors is an integer number (15261861075).

Almost surely, 2^30523722149 is an apocalyptic number.

It is an amenable number.

30523722149 is a deficient number, since it is larger than the sum of its proper divisors (1).

30523722149 is an equidigital number, since it uses as much as digits as its factorization.

30523722149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 30523722149 in words is "thirty billion, five hundred twenty-three million, seven hundred twenty-two thousand, one hundred forty-nine".