23112203011 has 4 divisors (see below), whose sum is σ = 23119195192. Its totient is φ = 23105210832.

The previous prime is 23112202957. The next prime is 23112203017. The reversal of 23112203011 is 11030221132.

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-23112203011 is a prime.

It is a super-2 number, since 2×23112203011² (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 (23112203017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3491130 + ... + 3497743.

It is an arithmetic number, because the mean of its divisors is an integer number (5779798798).

Almost surely, 2^23112203011 is an apocalyptic number.

23112203011 is a deficient number, since it is larger than the sum of its proper divisors (6992181).

23112203011 is an equidigital number, since it uses as much as digits as its factorization.

23112203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992180.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23112203011 its reverse (11030221132), we get a palindrome (34142424143).

The spelling of 23112203011 in words is "twenty-three billion, one hundred twelve million, two hundred three thousand, eleven".