1011123331223 has 8 divisors (see below), whose sum is σ = 1017369408000. Its totient is φ = 1004877777528.

The previous prime is 1011123331219. The next prime is 1011123331271. The reversal of 1011123331223 is 3221333211101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011123331223 - 2² = 1011123331219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011123331723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4185548 + ... + 4420526.

It is an arithmetic number, because the mean of its divisors is an integer number (127171176000).

Almost surely, 2^{1011123331223} is an apocalyptic number.

1011123331223 is a deficient number, since it is larger than the sum of its proper divisors (6246076777).

1011123331223 is a wasteful number, since it uses less digits than its factorization.

1011123331223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261541.

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

Adding to 1011123331223 its reverse (3221333211101), we get a palindrome (4232456542324).

The spelling of 1011123331223 in words is "one trillion, eleven billion, one hundred twenty-three million, three hundred thirty-one thousand, two hundred twenty-three".