155331041223 has 4 divisors (see below), whose sum is σ = 207108054968. Its totient is φ = 103554027480.

The previous prime is 155331041191. The next prime is 155331041233. The reversal of 155331041223 is 322140133551.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 155331041223 - 2⁵ = 155331041191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155331041233) 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, 25888506868 + ... + 25888506873.

It is an arithmetic number, because the mean of its divisors is an integer number (51777013742).

Almost surely, 2^155331041223 is an apocalyptic number.

155331041223 is a deficient number, since it is larger than the sum of its proper divisors (51777013745).

155331041223 is an equidigital number, since it uses as much as digits as its factorization.

155331041223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51777013744.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 155331041223 its reverse (322140133551), we get a palindrome (477471174774).

The spelling of 155331041223 in words is "one hundred fifty-five billion, three hundred thirty-one million, forty-one thousand, two hundred twenty-three".