23211012 has 48 divisors (see below), whose sum is σ = 59701824. Its totient is φ = 6960000.

The previous prime is 23210987. The next prime is 23211029. The reversal of 23211012 is 21011232.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12462 + ... + 14202.

It is an arithmetic number, because the mean of its divisors is an integer number (1243788).

Almost surely, 2^23211012 is an apocalyptic number.

23211012 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 23211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29850912).

23211012 is an abundant number, since it is smaller than the sum of its proper divisors (36490812).

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

23211012 is a wasteful number, since it uses less digits than its factorization.

23211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1858 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 23211012 is about 4817.7808169322. The cubic root of 23211012 is about 285.2537475411.

Adding to 23211012 its reverse (21011232), we get a palindrome (44222244).

It can be divided in two parts, 2321 and 1012, that added together give a palindrome (3333).

The spelling of 23211012 in words is "twenty-three million, two hundred eleven thousand, twelve".