11011220201123 has 2 divisors, whose sum is σ = 11011220201124. Its totient is φ = 11011220201122.

The previous prime is 11011220201101. The next prime is 11011220201143. The reversal of 11011220201123 is 32110202211011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11011220201123 - 2⁸ = 11011220200867 is a prime.

It is a super-2 number, since 2×11011220201123² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11011220201143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505610100561 + 5505610100562.

It is an arithmetic number, because the mean of its divisors is an integer number (5505610100562).

Almost surely, 2^{11011220201123} is an apocalyptic number.

11011220201123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011220201123 is an equidigital number, since it uses as much as digits as its factorization.

11011220201123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11011220201123 its reverse (32110202211011), we get a palindrome (43121422412134).

The spelling of 11011220201123 in words is "eleven trillion, eleven billion, two hundred twenty million, two hundred one thousand, one hundred twenty-three".