1011112001223 has 8 divisors (see below), whose sum is σ = 1419104563200. Its totient is φ = 638597053368.

The previous prime is 1011112001219. The next prime is 1011112001279. The reversal of 1011112001223 is 3221002111101.

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

It is not a de Polignac number, because 1011112001223 - 2² = 1011112001219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011112001323) 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, 8869403463 + ... + 8869403576.

It is an arithmetic number, because the mean of its divisors is an integer number (177388070400).

Almost surely, 2^{1011112001223} is an apocalyptic number.

1011112001223 is a deficient number, since it is larger than the sum of its proper divisors (407992561977).

1011112001223 is a wasteful number, since it uses less digits than its factorization.

1011112001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17738807061.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1011112001223 its reverse (3221002111101), we get a palindrome (4232114112324).

The spelling of 1011112001223 in words is "one trillion, eleven billion, one hundred twelve million, one thousand, two hundred twenty-three".