23211011012 has 48 divisors (see below), whose sum is σ = 47344711680. Its totient is φ = 9750229632.

The previous prime is 23211011011. The next prime is 23211011041. The reversal of 23211011012 is 21011011232.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (23211011011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605914 + ... + 1620302.

It is an arithmetic number, because the mean of its divisors is an integer number (986348160).

Almost surely, 2^23211011012 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 23211011012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23672355840).

23211011012 is an abundant number, since it is smaller than the sum of its proper divisors (24133700668).

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

23211011012 is a wasteful number, since it uses less digits than its factorization.

23211011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15540 (or 15538 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 23211011012 its reverse (21011011232), we get a palindrome (44222022244).

The spelling of 23211011012 in words is "twenty-three billion, two hundred eleven million, eleven thousand, twelve".