30561151213 has 4 divisors (see below), whose sum is σ = 30565975648. Its totient is φ = 30556326780.

The previous prime is 30561151207. The next prime is 30561151237. The reversal of 30561151213 is 31215116503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30561151213 - 2¹⁷ = 30561020141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30561151273) 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 in 3 ways as a sum of consecutive naturals, for example, 2402703 + ... + 2415388.

It is an arithmetic number, because the mean of its divisors is an integer number (7641493912).

Almost surely, 2^30561151213 is an apocalyptic number.

It is an amenable number.

30561151213 is a deficient number, since it is larger than the sum of its proper divisors (4824435).

30561151213 is an equidigital number, since it uses as much as digits as its factorization.

30561151213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824434.

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 30561151213 its reverse (31215116503), we get a palindrome (61776267716).

The spelling of 30561151213 in words is "thirty billion, five hundred sixty-one million, one hundred fifty-one thousand, two hundred thirteen".