1231203022223 has 4 divisors (see below), whose sum is σ = 1232606903400. Its totient is φ = 1229799141048.

The previous prime is 1231203022219. The next prime is 1231203022267. The reversal of 1231203022223 is 3222203021321.

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 1231203022223 - 2² = 1231203022219 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 (1231203022823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701939273 + ... + 701941026.

It is an arithmetic number, because the mean of its divisors is an integer number (308151725850).

Almost surely, 2^{1231203022223} is an apocalyptic number.

1231203022223 is a deficient number, since it is larger than the sum of its proper divisors (1403881177).

1231203022223 is an equidigital number, since it uses as much as digits as its factorization.

1231203022223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403881176.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1231203022223 its reverse (3222203021321), we get a palindrome (4453406043544).

The spelling of 1231203022223 in words is "one trillion, two hundred thirty-one billion, two hundred three million, twenty-two thousand, two hundred twenty-three".