1233121122769 has 2 divisors, whose sum is σ = 1233121122770. Its totient is φ = 1233121122768.

The previous prime is 1233121122749. The next prime is 1233121122881. The reversal of 1233121122769 is 9672211213321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783534780625 + 449586342144 = 885175^2 + 670512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233121122769 is a prime.

It is a super-2 number, since 2×1233121122769² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1233121122749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616560561384 + 616560561385.

It is an arithmetic number, because the mean of its divisors is an integer number (616560561385).

Almost surely, 2^{1233121122769} is an apocalyptic number.

It is an amenable number.

1233121122769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233121122769 is an equidigital number, since it uses as much as digits as its factorization.

1233121122769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The spelling of 1233121122769 in words is "one trillion, two hundred thirty-three billion, one hundred twenty-one million, one hundred twenty-two thousand, seven hundred sixty-nine".