155211203323 has 8 divisors (see below), whose sum is σ = 169338101760. Its totient is φ = 141087103080.

The previous prime is 155211203321. The next prime is 155211203333. The reversal of 155211203323 is 323302112551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155211203323 - 2¹ = 155211203321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155211203291 and 155211203300.

It is not an unprimeable number, because it can be changed into a prime (155211203321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582715 + ... + 806212.

It is an arithmetic number, because the mean of its divisors is an integer number (21167262720).

Almost surely, 2^155211203323 is an apocalyptic number.

155211203323 is a deficient number, since it is larger than the sum of its proper divisors (14126898437).

155211203323 is a wasteful number, since it uses less digits than its factorization.

155211203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399097.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 155211203323 its reverse (323302112551), we get a palindrome (478513315874).

The spelling of 155211203323 in words is "one hundred fifty-five billion, two hundred eleven million, two hundred three thousand, three hundred twenty-three".