1100013012123 has 16 divisors (see below), whose sum is σ = 1530503437056. Its totient is φ = 701434404000.

The previous prime is 1100013012113. The next prime is 1100013012157. The reversal of 1100013012123 is 3212103100011.

It is a happy number.

It is not a de Polignac number, because 1100013012123 - 2¹⁰ = 1100013011099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1100013012113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1978161 + ... + 2472477.

It is an arithmetic number, because the mean of its divisors is an integer number (95656464816).

Almost surely, 2^{1100013012123} is an apocalyptic number.

1100013012123 is a deficient number, since it is larger than the sum of its proper divisors (430490424933).

1100013012123 is a wasteful number, since it uses less digits than its factorization.

1100013012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526594.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1100013012123 its reverse (3212103100011), we get a palindrome (4312116112134).

The spelling of 1100013012123 in words is "one trillion, one hundred billion, thirteen million, twelve thousand, one hundred twenty-three".