30743721049 has 2 divisors, whose sum is σ = 30743721050. Its totient is φ = 30743721048.

The previous prime is 30743721037. The next prime is 30743721059. The reversal of 30743721049 is 94012734703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28863631449 + 1880089600 = 169893^2 + 43360^2 .

It is an emirp because it is prime and its reverse (94012734703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30743721049 - 2⁵ = 30743721017 is a prime.

It is not a weakly prime, because it can be changed into another prime (30743721059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15371860524 + 15371860525.

It is an arithmetic number, because the mean of its divisors is an integer number (15371860525).

Almost surely, 2^30743721049 is an apocalyptic number.

It is an amenable number.

30743721049 is a deficient number, since it is larger than the sum of its proper divisors (1).

30743721049 is an equidigital number, since it uses as much as digits as its factorization.

30743721049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 30743721049 in words is "thirty billion, seven hundred forty-three million, seven hundred twenty-one thousand, forty-nine".