23201023212 has 48 divisors (see below), whose sum is σ = 60159070720. Its totient is φ = 7732611216.

The previous prime is 23201023171. The next prime is 23201023213. The reversal of 23201023212 is 21232010232.

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 (23201023213) 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, 1392153 + ... + 1408719.

Almost surely, 2^23201023212 is an apocalyptic number.

It is an amenable number.

23201023212 is an abundant number, since it is smaller than the sum of its proper divisors (36958047508).

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

23201023212 is a wasteful number, since it uses less digits than its factorization.

23201023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29547 (or 29539 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23201023212 its reverse (21232010232), we get a palindrome (44433033444).

The spelling of 23201023212 in words is "twenty-three billion, two hundred one million, twenty-three thousand, two hundred twelve".