2173272311099 has 4 divisors (see below), whose sum is σ = 2175081864600. Its totient is φ = 2171462757600.

The previous prime is 2173272310973. The next prime is 2173272311101. The reversal of 2173272311099 is 9901132723712.

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 2173272311099 - 2³² = 2168977343803 is a prime.

It is a super-2 number, since 2×2173272311099² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173272301099) 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, 904774949 + ... + 904777350.

It is an arithmetic number, because the mean of its divisors is an integer number (543770466150).

Almost surely, 2^{2173272311099} is an apocalyptic number.

2173272311099 is a deficient number, since it is larger than the sum of its proper divisors (1809553501).

2173272311099 is a wasteful number, since it uses less digits than its factorization.

2173272311099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809553500.

The product of its (nonzero) digits is 285768, while the sum is 47.

It can be divided in two parts, 2173 and 272311099, that added together give a palindrome (272313272).

The spelling of 2173272311099 in words is "two trillion, one hundred seventy-three billion, two hundred seventy-two million, three hundred eleven thousand, ninety-nine".