1243004211231 has 16 divisors (see below), whose sum is σ = 1663699811040. Its totient is φ = 825489783680.

The previous prime is 1243004211221. The next prime is 1243004211329. The reversal of 1243004211231 is 1321124003421.

It is a cyclic number.

It is not a de Polignac number, because 1243004211231 - 2¹⁰ = 1243004210207 is a prime.

It is a super-2 number, since 2×1243004211231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243004211221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6965881 + ... + 7142093.

It is an arithmetic number, because the mean of its divisors is an integer number (103981238190).

Almost surely, 2^{1243004211231} is an apocalyptic number.

1243004211231 is a deficient number, since it is larger than the sum of its proper divisors (420695599809).

1243004211231 is a wasteful number, since it uses less digits than its factorization.

1243004211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185226.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1243004211231 its reverse (1321124003421), we get a palindrome (2564128214652).

The spelling of 1243004211231 in words is "one trillion, two hundred forty-three billion, four million, two hundred eleven thousand, two hundred thirty-one".