30012530729 has 2 divisors, whose sum is σ = 30012530730. Its totient is φ = 30012530728.

The previous prime is 30012530707. The next prime is 30012530749. The reversal of 30012530729 is 92703521003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29270077225 + 742453504 = 171085^2 + 27248^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012530729 - 2¹² = 30012526633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30012530695 and 30012530704.

It is not a weakly prime, because it can be changed into another prime (30012530749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006265364 + 15006265365.

It is an arithmetic number, because the mean of its divisors is an integer number (15006265365).

Almost surely, 2^30012530729 is an apocalyptic number.

It is an amenable number.

30012530729 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012530729 is an equidigital number, since it uses as much as digits as its factorization.

30012530729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 30012530729 in words is "thirty billion, twelve million, five hundred thirty thousand, seven hundred twenty-nine".