23004155011 has 4 divisors (see below), whose sum is σ = 23231919024. Its totient is φ = 22776391000.

The previous prime is 23004154997. The next prime is 23004155059. The reversal of 23004155011 is 11055140032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23004155011 is a prime.

It is a super-2 number, since 2×23004155011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23004155411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113881855 + ... + 113882056.

It is an arithmetic number, because the mean of its divisors is an integer number (5807979756).

Almost surely, 2^23004155011 is an apocalyptic number.

23004155011 is a deficient number, since it is larger than the sum of its proper divisors (227764013).

23004155011 is a wasteful number, since it uses less digits than its factorization.

23004155011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227764012.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 23004155011 its reverse (11055140032), we get a palindrome (34059295043).

The spelling of 23004155011 in words is "twenty-three billion, four million, one hundred fifty-five thousand, eleven".