1100021323001 has 2 divisors, whose sum is σ = 1100021323002. Its totient is φ = 1100021323000.

The previous prime is 1100021322991. The next prime is 1100021323021. The reversal of 1100021323001 is 1003231200011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1099551474025 + 469848976 = 1048595^2 + 21676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100021323001 - 2⁶ = 1100021322937 is a prime.

It is a super-2 number, since 2×1100021323001² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1100021323021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550010661500 + 550010661501.

It is an arithmetic number, because the mean of its divisors is an integer number (550010661501).

Almost surely, 2^{1100021323001} is an apocalyptic number.

It is an amenable number.

1100021323001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100021323001 is an equidigital number, since it uses as much as digits as its factorization.

1100021323001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1100021323001 its reverse (1003231200011), we get a palindrome (2103252523012).

The spelling of 1100021323001 in words is "one trillion, one hundred billion, twenty-one million, three hundred twenty-three thousand, one".