21030301195 has 4 divisors (see below), whose sum is σ = 25236361440. Its totient is φ = 16824240952.

The previous prime is 21030301177. The next prime is 21030301241. The reversal of 21030301195 is 59110303012.

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

It is a cyclic number.

It is not a de Polignac number, because 21030301195 - 2²⁵ = 20996746763 is a prime.

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, 2103030115 + ... + 2103030124.

It is an arithmetic number, because the mean of its divisors is an integer number (6309090360).

Almost surely, 2^21030301195 is an apocalyptic number.

21030301195 is a deficient number, since it is larger than the sum of its proper divisors (4206060245).

21030301195 is an equidigital number, since it uses as much as digits as its factorization.

21030301195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206060244.

The product of its (nonzero) digits is 810, while the sum is 25.

The spelling of 21030301195 in words is "twenty-one billion, thirty million, three hundred one thousand, one hundred ninety-five".