23121100210 has 32 divisors (see below), whose sum is σ = 44965432512. Its totient is φ = 8509199040.

The previous prime is 23121100199. The next prime is 23121100213. The reversal of 23121100210 is 1200112132.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (23121100213) 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, 249756 + ... + 329575.

It is an arithmetic number, because the mean of its divisors is an integer number (1405169766).

Almost surely, 2^23121100210 is an apocalyptic number.

23121100210 is a deficient number, since it is larger than the sum of its proper divisors (21844332302).

23121100210 is a wasteful number, since it uses less digits than its factorization.

23121100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579658.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 23121100210 its reverse (1200112132), we get a palindrome (24321212342).

The spelling of 23121100210 in words is "twenty-three billion, one hundred twenty-one million, one hundred thousand, two hundred ten".