11112203123 has 8 divisors (see below), whose sum is σ = 12709284960. Its totient is φ = 9517527360.

The previous prime is 11112203111. The next prime is 11112203131. The reversal of 11112203123 is 32130221111.

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 11112203123 - 2⁴ = 11112203107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112203723) 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, 591608 + ... + 610101.

It is an arithmetic number, because the mean of its divisors is an integer number (1588660620).

Almost surely, 2^11112203123 is an apocalyptic number.

11112203123 is a deficient number, since it is larger than the sum of its proper divisors (1597081837).

11112203123 is a wasteful number, since it uses less digits than its factorization.

11112203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203037.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11112203123 its reverse (32130221111), we get a palindrome (43242424234).

The spelling of 11112203123 in words is "eleven billion, one hundred twelve million, two hundred three thousand, one hundred twenty-three".