30129997501 has 2 divisors, whose sum is σ = 30129997502. Its totient is φ = 30129997500.

The previous prime is 30129997489. The next prime is 30129997523. The reversal of 30129997501 is 10579992103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25695769401 + 4434228100 = 160299^2 + 66590^2 .

It is an emirp because it is prime and its reverse (10579992103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30129997501 - 2¹¹ = 30129995453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30129997591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15064998750 + 15064998751.

It is an arithmetic number, because the mean of its divisors is an integer number (15064998751).

Almost surely, 2^30129997501 is an apocalyptic number.

It is an amenable number.

30129997501 is a deficient number, since it is larger than the sum of its proper divisors (1).

30129997501 is an equidigital number, since it uses as much as digits as its factorization.

30129997501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 46.

The spelling of 30129997501 in words is "thirty billion, one hundred twenty-nine million, nine hundred ninety-seven thousand, five hundred one".