30213012312305 has 4 divisors (see below), whose sum is σ = 36255614774772. Its totient is φ = 24170409849840.

The previous prime is 30213012312277. The next prime is 30213012312323. The reversal of 30213012312305 is 50321321031203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7155047211664 + 23057965100641 = 2674892^2 + 4801871^2 .

It is not a de Polignac number, because 30213012312305 - 2¹² = 30213012308209 is a prime.

It is a super-2 number, since 2×30213012312305² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3021301231226 + ... + 3021301231235.

It is an arithmetic number, because the mean of its divisors is an integer number (9063903693693).

Almost surely, 2^{30213012312305} is an apocalyptic number.

It is an amenable number.

30213012312305 is a deficient number, since it is larger than the sum of its proper divisors (6042602462467).

30213012312305 is an equidigital number, since it uses as much as digits as its factorization.

30213012312305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042602462466.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 30213012312305 its reverse (50321321031203), we get a palindrome (80534333343508).

The spelling of 30213012312305 in words is "thirty trillion, two hundred thirteen billion, twelve million, three hundred twelve thousand, three hundred five".