100000000173623 has 4 divisors (see below), whose sum is σ = 109090909280328. Its totient is φ = 90909091066920.

The previous prime is 100000000173617. The next prime is 100000000173677. The reversal of 100000000173623 is 326371000000001.

It is a happy number.

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 100000000173623 - 2⁶ = 100000000173559 is a prime.

It is a super-2 number, since 2×100000000173623² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000000173323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545454553336 + ... + 4545454553357.

It is an arithmetic number, because the mean of its divisors is an integer number (27272727320082).

Almost surely, 2^{100000000173623} is an apocalyptic number.

100000000173623 is a deficient number, since it is larger than the sum of its proper divisors (9090909106705).

100000000173623 is an equidigital number, since it uses as much as digits as its factorization.

100000000173623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090909106704.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 100000000173623 its reverse (326371000000001), we get a palindrome (426371000173624).

The spelling of 100000000173623 in words is "one hundred trillion, one hundred seventy-three thousand, six hundred twenty-three".