11213040123 has 6 divisors (see below), whose sum is σ = 16196613524. Its totient is φ = 7475360076.

The previous prime is 11213040107. The next prime is 11213040131. The reversal of 11213040123 is 32104031211.

11213040123 is a `hidden beast` number, since 112 + 130 + 401 + 23 = 666.

It is not a de Polignac number, because 11213040123 - 2⁴ = 11213040107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11213040096 and 11213040105.

It is not an unprimeable number, because it can be changed into a prime (11213040173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622946665 + ... + 622946682.

Almost surely, 2^11213040123 is an apocalyptic number.

11213040123 is a deficient number, since it is larger than the sum of its proper divisors (4983573401).

11213040123 is a wasteful number, since it uses less digits than its factorization.

11213040123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245893353 (or 1245893350 counting only the distinct ones).

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

Adding to 11213040123 its reverse (32104031211), we get a palindrome (43317071334).

The spelling of 11213040123 in words is "eleven billion, two hundred thirteen million, forty thousand, one hundred twenty-three".