1255531342223 has 4 divisors (see below), whose sum is σ = 1255533773448. Its totient is φ = 1255528911000.

The previous prime is 1255531342217. The next prime is 1255531342249. The reversal of 1255531342223 is 3222431355521.

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 1255531342223 - 2¹⁶ = 1255531276687 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 (1255531342213) 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, 99236 + ... + 1587737.

It is an arithmetic number, because the mean of its divisors is an integer number (313883443362).

Almost surely, 2^{1255531342223} is an apocalyptic number.

1255531342223 is a deficient number, since it is larger than the sum of its proper divisors (2431225).

1255531342223 is an equidigital number, since it uses as much as digits as its factorization.

1255531342223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431224.

The product of its digits is 216000, while the sum is 38.

Adding to 1255531342223 its reverse (3222431355521), we get a palindrome (4477962697744).

The spelling of 1255531342223 in words is "one trillion, two hundred fifty-five billion, five hundred thirty-one million, three hundred forty-two thousand, two hundred twenty-three".