1231211230333 has 16 divisors (see below), whose sum is σ = 1416182057856. Its totient is φ = 1048519471680.

The previous prime is 1231211230261. The next prime is 1231211230339. The reversal of 1231211230333 is 3330321121321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231211230333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231211230298 and 1231211230307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231211230339) 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 15 ways as a sum of consecutive naturals, for example, 1467538 + ... + 2148508.

It is an arithmetic number, because the mean of its divisors is an integer number (88511378616).

Almost surely, 2^{1231211230333} is an apocalyptic number.

It is an amenable number.

1231211230333 is a deficient number, since it is larger than the sum of its proper divisors (184970827523).

1231211230333 is a wasteful number, since it uses less digits than its factorization.

1231211230333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682644.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1231211230333 its reverse (3330321121321), we get a palindrome (4561532351654).

The spelling of 1231211230333 in words is "one trillion, two hundred thirty-one billion, two hundred eleven million, two hundred thirty thousand, three hundred thirty-three".