11123403102 has 96 divisors (see below), whose sum is σ = 27765504000. Its totient is φ = 3152628864.

The previous prime is 11123403101. The next prime is 11123403107. The reversal of 11123403102 is 20130432111.

11123403102 is a `hidden beast` number, since 1 + 1 + 12 + 340 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123403101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15470299 + ... + 15471017.

It is an arithmetic number, because the mean of its divisors is an integer number (289224000).

Almost surely, 2^11123403102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11123403102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13882752000).

11123403102 is an abundant number, since it is smaller than the sum of its proper divisors (16642100898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11123403102 is a wasteful number, since it uses less digits than its factorization.

11123403102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11123403102 its reverse (20130432111), we get a palindrome (31253835213).

The spelling of 11123403102 in words is "eleven billion, one hundred twenty-three million, four hundred three thousand, one hundred two".