1223312031133 has 2 divisors, whose sum is σ = 1223312031134. Its totient is φ = 1223312031132.

The previous prime is 1223312031127. The next prime is 1223312031217. The reversal of 1223312031133 is 3311302133221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1108013074884 + 115298956249 = 1052622^2 + 339557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223312031133 - 2²¹ = 1223309933981 is a prime.

It is a super-2 number, since 2×1223312031133² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223312031098 and 1223312031107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223312031103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611656015566 + 611656015567.

It is an arithmetic number, because the mean of its divisors is an integer number (611656015567).

Almost surely, 2^{1223312031133} is an apocalyptic number.

It is an amenable number.

1223312031133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223312031133 is an equidigital number, since it uses as much as digits as its factorization.

1223312031133 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1223312031133 its reverse (3311302133221), we get a palindrome (4534614164354).

The spelling of 1223312031133 in words is "one trillion, two hundred twenty-three billion, three hundred twelve million, thirty-one thousand, one hundred thirty-three".