23111323012 has 6 divisors (see below), whose sum is σ = 40444815278. Its totient is φ = 11555661504.

The previous prime is 23111323009. The next prime is 23111323049. The reversal of 23111323012 is 21032311132.

It can be written as a sum of positive squares in only one way, i.e., 21560223556 + 1551099456 = 146834^2 + 39384^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2888915373 + ... + 2888915380.

Almost surely, 2^23111323012 is an apocalyptic number.

It is an amenable number.

23111323012 is a deficient number, since it is larger than the sum of its proper divisors (17333492266).

23111323012 is a wasteful number, since it uses less digits than its factorization.

23111323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777830757 (or 5777830755 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23111323012 its reverse (21032311132), we get a palindrome (44143634144).

The spelling of 23111323012 in words is "twenty-three billion, one hundred eleven million, three hundred twenty-three thousand, twelve".