11031123003123 has 32 divisors (see below), whose sum is σ = 16393709283840. Its totient is φ = 6556916390400.

The previous prime is 11031123003107. The next prime is 11031123003143. The reversal of 11031123003123 is 32130032113011.

It is a happy number.

It is not a de Polignac number, because 11031123003123 - 2⁴ = 11031123003107 is a prime.

It is a super-3 number, since 3×11031123003123³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11031123003123.

It is not an unprimeable number, because it can be changed into a prime (11031123003143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23329098 + ... + 23797248.

It is an arithmetic number, because the mean of its divisors is an integer number (512303415120).

Almost surely, 2^{11031123003123} is an apocalyptic number.

11031123003123 is a deficient number, since it is larger than the sum of its proper divisors (5362586280717).

11031123003123 is a wasteful number, since it uses less digits than its factorization.

11031123003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492507.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11031123003123 its reverse (32130032113011), we get a palindrome (43161155116134).

The spelling of 11031123003123 in words is "eleven trillion, thirty-one billion, one hundred twenty-three million, three thousand, one hundred twenty-three".