11233123301021 has 2 divisors, whose sum is σ = 11233123301022. Its totient is φ = 11233123301020.

The previous prime is 11233123301009. The next prime is 11233123301051. The reversal of 11233123301021 is 12010332133211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10487558402500 + 745564898521 = 3238450^2 + 863461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11233123301021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11233123301051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616561650510 + 5616561650511.

It is an arithmetic number, because the mean of its divisors is an integer number (5616561650511).

Almost surely, 2^{11233123301021} is an apocalyptic number.

It is an amenable number.

11233123301021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11233123301021 is an equidigital number, since it uses as much as digits as its factorization.

11233123301021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11233123301021 its reverse (12010332133211), we get a palindrome (23243455434232).

The spelling of 11233123301021 in words is "eleven trillion, two hundred thirty-three billion, one hundred twenty-three million, three hundred one thousand, twenty-one".