1231022001223 has 16 divisors (see below), whose sum is σ = 1408130680320. Its totient is φ = 1054225796256.

The previous prime is 1231022001211. The next prime is 1231022001227. The reversal of 1231022001223 is 3221002201321.

It is a cyclic number.

It is not a de Polignac number, because 1231022001223 - 2³³ = 1222432066631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231022001223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231022001227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48332790 + ... + 48358252.

It is an arithmetic number, because the mean of its divisors is an integer number (88008167520).

Almost surely, 2^{1231022001223} is an apocalyptic number.

1231022001223 is a deficient number, since it is larger than the sum of its proper divisors (177108679097).

1231022001223 is a wasteful number, since it uses less digits than its factorization.

1231022001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31326.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1231022001223 its reverse (3221002201321), we get a palindrome (4452024202544).

The spelling of 1231022001223 in words is "one trillion, two hundred thirty-one billion, twenty-two million, one thousand, two hundred twenty-three".