1111133323021 has 2 divisors, whose sum is σ = 1111133323022. Its totient is φ = 1111133323020.

The previous prime is 1111133323007. The next prime is 1111133323043. The reversal of 1111133323021 is 1203233311111.

It is an a-pointer prime, because the next prime (1111133323043) can be obtained adding 1111133323021 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002621716100 + 108511606921 = 1001310^2 + 329411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111133323021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111133322983 and 1111133323001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111133321021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555566661510 + 555566661511.

It is an arithmetic number, because the mean of its divisors is an integer number (555566661511).

Almost surely, 2^{1111133323021} is an apocalyptic number.

It is an amenable number.

1111133323021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111133323021 is an equidigital number, since it uses as much as digits as its factorization.

1111133323021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1111133323021 its reverse (1203233311111), we get a palindrome (2314366634132).

The spelling of 1111133323021 in words is "one trillion, one hundred eleven billion, one hundred thirty-three million, three hundred twenty-three thousand, twenty-one".