30026011309 has 6 divisors (see below), whose sum is σ = 34928217294. Its totient is φ = 25736581080.

The previous prime is 30026011261. The next prime is 30026011333. The reversal of 30026011309 is 90311062003.

It can be written as a sum of positive squares in only one way, i.e., 22975890084 + 7050121225 = 151578^2 + 83965^2 .

It is not a de Polignac number, because 30026011309 - 2⁹ = 30026010797 is a prime.

It is a super-2 number, since 2×30026011309² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30026011349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306387822 + ... + 306387919.

It is an arithmetic number, because the mean of its divisors is an integer number (5821369549).

Almost surely, 2^30026011309 is an apocalyptic number.

It is an amenable number.

30026011309 is a deficient number, since it is larger than the sum of its proper divisors (4902205985).

30026011309 is an equidigital number, since it uses as much as digits as its factorization.

30026011309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612775755 (or 612775748 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 30026011309 in words is "thirty billion, twenty-six million, eleven thousand, three hundred nine".