23111323212 has 48 divisors (see below), whose sum is σ = 54118064000. Its totient is φ = 7676449920.

The previous prime is 23111323171. The next prime is 23111323273. The reversal of 23111323212 is 21232311132.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4238664 + ... + 4244112.

Almost surely, 2^23111323212 is an apocalyptic number.

It is an amenable number.

23111323212 is an abundant number, since it is smaller than the sum of its proper divisors (31006740788).

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

23111323212 is a wasteful number, since it uses less digits than its factorization.

23111323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646 (or 6644 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 23111323212 its reverse (21232311132), we get a palindrome (44343634344).

The spelling of 23111323212 in words is "twenty-three billion, one hundred eleven million, three hundred twenty-three thousand, two hundred twelve".