30861185011 has 4 divisors (see below), whose sum is σ = 31578887032. Its totient is φ = 30143482992.

The previous prime is 30861184873. The next prime is 30861185021. The reversal of 30861185011 is 11058116803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11058116803 = 17 ⋅650477459.

It is a cyclic number.

It is not a de Polignac number, because 30861185011 - 2¹⁹ = 30860660723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30861185021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358850946 + ... + 358851031.

It is an arithmetic number, because the mean of its divisors is an integer number (7894721758).

Almost surely, 2^30861185011 is an apocalyptic number.

30861185011 is a deficient number, since it is larger than the sum of its proper divisors (717702021).

30861185011 is an equidigital number, since it uses as much as digits as its factorization.

30861185011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717702020.

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 30861185011 in words is "thirty billion, eight hundred sixty-one million, one hundred eighty-five thousand, eleven".