21112023102 has 8 divisors (see below), whose sum is σ = 42224046216. Its totient is φ = 7037341032.

The previous prime is 21112023073. The next prime is 21112023151. The reversal of 21112023102 is 20132021112.

It is a sphenic number, since it is the product of 3 distinct primes.

21112023102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759335253 + ... + 1759335264.

It is an arithmetic number, because the mean of its divisors is an integer number (5278005777).

Almost surely, 2^21112023102 is an apocalyptic number.

21112023102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21112023102 is a wasteful number, since it uses less digits than its factorization.

21112023102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518670522.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21112023102 its reverse (20132021112), we get a palindrome (41244044214).

The spelling of 21112023102 in words is "twenty-one billion, one hundred twelve million, twenty-three thousand, one hundred two".