23111311213 has 8 divisors (see below), whose sum is σ = 23309184096. Its totient is φ = 22913763600.

The previous prime is 23111311211. The next prime is 23111311231. The reversal of 23111311213 is 31211311132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23111311213 - 2¹ = 23111311211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111311211) 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 7 ways as a sum of consecutive naturals, for example, 62478 + ... + 223888.

It is an arithmetic number, because the mean of its divisors is an integer number (2913648012).

Almost surely, 2^23111311213 is an apocalyptic number.

It is an amenable number.

23111311213 is a deficient number, since it is larger than the sum of its proper divisors (197872883).

23111311213 is a wasteful number, since it uses less digits than its factorization.

23111311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162635.

The product of its digits is 108, while the sum is 19.

Adding to 23111311213 its reverse (31211311132), we get a palindrome (54322622345).

The spelling of 23111311213 in words is "twenty-three billion, one hundred eleven million, three hundred eleven thousand, two hundred thirteen".