11031030013123 has 16 divisors (see below), whose sum is σ = 11732729057280. Its totient is φ = 10335202782336.

The previous prime is 11031030013117. The next prime is 11031030013127. The reversal of 11031030013123 is 32131003013011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031030013123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11031030013123.

It is not an unprimeable number, because it can be changed into a prime (11031030013127) 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, 179689248 + ... + 179750626.

It is an arithmetic number, because the mean of its divisors is an integer number (733295566080).

Almost surely, 2^{11031030013123} is an apocalyptic number.

11031030013123 is a deficient number, since it is larger than the sum of its proper divisors (701699044157).

11031030013123 is a wasteful number, since it uses less digits than its factorization.

11031030013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109026.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11031030013123 its reverse (32131003013011), we get a palindrome (43162033026134).

The spelling of 11031030013123 in words is "eleven trillion, thirty-one billion, thirty million, thirteen thousand, one hundred twenty-three".