2021023105 has 8 divisors (see below), whose sum is σ = 2437416000. Its totient is φ = 1608692976.

The previous prime is 2021023099. The next prime is 2021023153. The reversal of 2021023105 is 5013201202.

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

It is a cyclic number.

It is not a de Polignac number, because 2021023105 - 2³ = 2021023097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014595 + ... + 1016584.

It is an arithmetic number, because the mean of its divisors is an integer number (304677000).

Almost surely, 2^2021023105 is an apocalyptic number.

It is an amenable number.

2021023105 is a deficient number, since it is larger than the sum of its proper divisors (416392895).

2021023105 is a wasteful number, since it uses less digits than its factorization.

2021023105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031383.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2021023105 is about 44955.7905613949. The cubic root of 2021023105 is about 1264.3202470029.

Adding to 2021023105 its reverse (5013201202), we get a palindrome (7034224307).

The spelling of 2021023105 in words is "two billion, twenty-one million, twenty-three thousand, one hundred five".