1233031133221 has 2 divisors, whose sum is σ = 1233031133222. Its totient is φ = 1233031133220.

The previous prime is 1233031133171. The next prime is 1233031133249. The reversal of 1233031133221 is 1223311303321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1229628160996 + 3402972225 = 1108886^2 + 58335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233031133221 - 2¹⁹ = 1233030608933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233031133281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616515566610 + 616515566611.

It is an arithmetic number, because the mean of its divisors is an integer number (616515566611).

Almost surely, 2^{1233031133221} is an apocalyptic number.

It is an amenable number.

1233031133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233031133221 is an equidigital number, since it uses as much as digits as its factorization.

1233031133221 is an evil number, because the sum of its binary digits is even.

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

Adding to 1233031133221 its reverse (1223311303321), we get a palindrome (2456342436542).

The spelling of 1233031133221 in words is "one trillion, two hundred thirty-three billion, thirty-one million, one hundred thirty-three thousand, two hundred twenty-one".