1101012111223 has 4 divisors (see below), whose sum is σ = 1106544835600. Its totient is φ = 1095479386848.

The previous prime is 1101012111191. The next prime is 1101012111233. The reversal of 1101012111223 is 3221112101011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101012111223 - 2⁵ = 1101012111191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101012111197 and 1101012111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101012111233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766361890 + ... + 2766362287.

It is an arithmetic number, because the mean of its divisors is an integer number (276636208900).

Almost surely, 2^{1101012111223} is an apocalyptic number.

1101012111223 is a deficient number, since it is larger than the sum of its proper divisors (5532724377).

1101012111223 is an equidigital number, since it uses as much as digits as its factorization.

1101012111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532724376.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1101012111223 its reverse (3221112101011), we get a palindrome (4322124212234).

The spelling of 1101012111223 in words is "one trillion, one hundred one billion, twelve million, one hundred eleven thousand, two hundred twenty-three".