20001103210 has 32 divisors (see below), whose sum is σ = 39282086592. Its totient is φ = 7271796480.

The previous prime is 20001103193. The next prime is 20001103247. The reversal of 20001103210 is 1230110002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743922 + ... + 770338.

It is an arithmetic number, because the mean of its divisors is an integer number (1227565206).

Almost surely, 2^20001103210 is an apocalyptic number.

20001103210 is a deficient number, since it is larger than the sum of its proper divisors (19280983382).

20001103210 is a wasteful number, since it uses less digits than its factorization.

20001103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33318.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20001103210 its reverse (1230110002), we get a palindrome (21231213212).

The spelling of 20001103210 in words is "twenty billion, one million, one hundred three thousand, two hundred ten".