100305153505 has 4 divisors (see below), whose sum is σ = 120366184212. Its totient is φ = 80244122800.

The previous prime is 100305153491. The next prime is 100305153547. The reversal of 100305153505 is 505351503001.

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 52852630609 + 47452522896 = 229897^2 + 217836^2 .

It is a de Polignac number, because none of the positive numbers 2^k-100305153505 is a prime.

It is a super-2 number, since 2×100305153505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian 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, 10030515346 + ... + 10030515355.

It is an arithmetic number, because the mean of its divisors is an integer number (30091546053).

Almost surely, 2^100305153505 is an apocalyptic number.

It is an amenable number.

100305153505 is a deficient number, since it is larger than the sum of its proper divisors (20061030707).

100305153505 is an equidigital number, since it uses as much as digits as its factorization.

100305153505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20061030706.

The product of its (nonzero) digits is 5625, while the sum is 28.

Adding to 100305153505 its reverse (505351503001), we get a palindrome (605656656506).

The spelling of 100305153505 in words is "one hundred billion, three hundred five million, one hundred fifty-three thousand, five hundred five".