23113311012 has 96 divisors (see below), whose sum is σ = 65607911040. Its totient is φ = 6978648960.

The previous prime is 23113310989. The next prime is 23113311017. The reversal of 23113311012 is 21011331132.

23113311012 is a `hidden beast` number, since 2 + 311 + 331 + 10 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23113311017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293958 + ... + 364194.

It is an arithmetic number, because the mean of its divisors is an integer number (683415740).

Almost surely, 2^23113311012 is an apocalyptic number.

23113311012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23113311012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32803955520).

23113311012 is an abundant number, since it is smaller than the sum of its proper divisors (42494600028).

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

23113311012 is a wasteful number, since it uses less digits than its factorization.

23113311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70538 (or 70530 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23113311012 its reverse (21011331132), we get a palindrome (44124642144).

The spelling of 23113311012 in words is "twenty-three billion, one hundred thirteen million, three hundred eleven thousand, twelve".