823110012 has 144 divisors (see below), whose sum is σ = 2310628320. Its totient is φ = 255301632.

The previous prime is 823109939. The next prime is 823110017. The reversal of 823110012 is 210011328.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823110017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1800888 + ... + 1801344.

It is an arithmetic number, because the mean of its divisors is an integer number (16046030).

Almost surely, 2^823110012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823110012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155314160).

823110012 is an abundant number, since it is smaller than the sum of its proper divisors (1487518308).

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

823110012 is a wasteful number, since it uses less digits than its factorization.

823110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 823110012 is about 28689.8939001175. The cubic root of 823110012 is about 937.1719786822.

The spelling of 823110012 in words is "eight hundred twenty-three million, one hundred ten thousand, twelve".