23223155511 has 16 divisors (see below), whose sum is σ = 31029972480. Its totient is φ = 15449259840.

The previous prime is 23223155491. The next prime is 23223155513. The reversal of 23223155511 is 11555132232.

It is not a de Polignac number, because 23223155511 - 2¹⁴ = 23223139127 is a prime.

It is a super-2 number, since 2×23223155511² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223155513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3022771 + ... + 3030443.

It is an arithmetic number, because the mean of its divisors is an integer number (1939373280).

Almost surely, 2^23223155511 is an apocalyptic number.

23223155511 is a deficient number, since it is larger than the sum of its proper divisors (7806816969).

23223155511 is a wasteful number, since it uses less digits than its factorization.

23223155511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686.

The product of its digits is 9000, while the sum is 30.

Adding to 23223155511 its reverse (11555132232), we get a palindrome (34778287743).

The spelling of 23223155511 in words is "twenty-three billion, two hundred twenty-three million, one hundred fifty-five thousand, five hundred eleven".