100172325305 has 32 divisors (see below), whose sum is σ = 130979721600. Its totient is φ = 73102182912.

The previous prime is 100172325283. The next prime is 100172325307. The reversal of 100172325305 is 503523271001.

It is a cyclic number.

It is not a de Polignac number, because 100172325305 - 2⁸ = 100172325049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100172325307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14268086 + ... + 14275104.

It is an arithmetic number, because the mean of its divisors is an integer number (4093116300).

Almost surely, 2^100172325305 is an apocalyptic number.

It is an amenable number.

100172325305 is a deficient number, since it is larger than the sum of its proper divisors (30807396295).

100172325305 is a wasteful number, since it uses less digits than its factorization.

100172325305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9593.

The product of its (nonzero) digits is 6300, while the sum is 29.

Adding to 100172325305 its reverse (503523271001), we get a palindrome (603695596306).

The spelling of 100172325305 in words is "one hundred billion, one hundred seventy-two million, three hundred twenty-five thousand, three hundred five".