1031223231223 has 4 divisors (see below), whose sum is σ = 1031443629840. Its totient is φ = 1031002832608.

The previous prime is 1031223231191. The next prime is 1031223231251. The reversal of 1031223231223 is 3221323221301.

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 1031223231223 - 2⁵ = 1031223231191 is a prime.

It is a super-2 number, since 2×1031223231223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031223231263) 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, 110192290 + ... + 110201647.

It is an arithmetic number, because the mean of its divisors is an integer number (257860907460).

Almost surely, 2^{1031223231223} is an apocalyptic number.

1031223231223 is a deficient number, since it is larger than the sum of its proper divisors (220398617).

1031223231223 is an equidigital number, since it uses as much as digits as its factorization.

1031223231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220398616.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1031223231223 its reverse (3221323221301), we get a palindrome (4252546452524).

The spelling of 1031223231223 in words is "one trillion, thirty-one billion, two hundred twenty-three million, two hundred thirty-one thousand, two hundred twenty-three".