2155032323 has 4 divisors (see below), whose sum is σ = 2175172920. Its totient is φ = 2134891728.

The previous prime is 2155032317. The next prime is 2155032359. The reversal of 2155032323 is 3232305512.

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 2155032323 - 2⁶ = 2155032259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2155032292 and 2155032301.

It is not an unprimeable number, because it can be changed into a prime (2155031323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10070138 + ... + 10070351.

It is an arithmetic number, because the mean of its divisors is an integer number (543793230).

Almost surely, 2^2155032323 is an apocalyptic number.

2155032323 is a deficient number, since it is larger than the sum of its proper divisors (20140597).

2155032323 is a wasteful number, since it uses less digits than its factorization.

2155032323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20140596.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2155032323 is about 46422.3256957253. The cubic root of 2155032323 is about 1291.6690778246.

Adding to 2155032323 its reverse (3232305512), we get a palindrome (5387337835).

The spelling of 2155032323 in words is "two billion, one hundred fifty-five million, thirty-two thousand, three hundred twenty-three".