23001012 has 36 divisors (see below), whose sum is σ = 60671520. Its totient is φ = 7333392.

The previous prime is 23001007. The next prime is 23001019. The reversal of 23001012 is 21010032.

23001012 = 989² + 990² + ... + 1011².

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 23000985 and 23001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13062 + ... + 14717.

It is an arithmetic number, because the mean of its divisors is an integer number (1685320).

Almost surely, 2^23001012 is an apocalyptic number.

It is an amenable number.

23001012 is an abundant number, since it is smaller than the sum of its proper divisors (37670508).

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

23001012 is a wasteful number, since it uses less digits than its factorization.

23001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27812 (or 27807 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 23001012 is about 4795.9370304457. The cubic root of 23001012 is about 284.3908689289.

Adding to 23001012 its reverse (21010032), we get a palindrome (44011044).

The spelling of 23001012 in words is "twenty-three million, one thousand, twelve".