1233211321231 has 8 divisors (see below), whose sum is σ = 1248938588480. Its totient is φ = 1217486979072.

The previous prime is 1233211321219. The next prime is 1233211321271. The reversal of 1233211321231 is 1321231123321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233211321231 is a prime.

It is a super-2 number, since 2×1233211321231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233211321196 and 1233211321205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233211321211) 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 7 ways as a sum of consecutive naturals, for example, 123631 + ... + 1575343.

It is an arithmetic number, because the mean of its divisors is an integer number (156117323560).

Almost surely, 2^{1233211321231} is an apocalyptic number.

1233211321231 is a deficient number, since it is larger than the sum of its proper divisors (15727267249).

1233211321231 is a wasteful number, since it uses less digits than its factorization.

1233211321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462545.

The product of its digits is 1296, while the sum is 25.

Adding to 1233211321231 its reverse (1321231123321), we get a palindrome (2554442444552).

The spelling of 1233211321231 in words is "one trillion, two hundred thirty-three billion, two hundred eleven million, three hundred twenty-one thousand, two hundred thirty-one".