2100051305 has 8 divisors (see below), whose sum is σ = 2749158144. Its totient is φ = 1527310000.

The previous prime is 2100051301. The next prime is 2100051307. The reversal of 2100051305 is 5031500012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2100051305 - 2² = 2100051301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100051301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19091321 + ... + 19091430.

It is an arithmetic number, because the mean of its divisors is an integer number (343644768).

Almost surely, 2^2100051305 is an apocalyptic number.

It is an amenable number.

2100051305 is a deficient number, since it is larger than the sum of its proper divisors (649106839).

2100051305 is a wasteful number, since it uses less digits than its factorization.

2100051305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38182767.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 2100051305 is about 45826.3167295824. The cubic root of 2100051305 is about 1280.5895934921.

Adding to 2100051305 its reverse (5031500012), we get a palindrome (7131551317).

The spelling of 2100051305 in words is "two billion, one hundred million, fifty-one thousand, three hundred five".