20201002104 has 32 divisors (see below), whose sum is σ = 50615010000. Its totient is φ = 6718666752.

The previous prime is 20201002057. The next prime is 20201002117. The reversal of 20201002104 is 40120010202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20201002104.

It is a congruent number.

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, 926539 + ... + 948090.

Almost surely, 2^20201002104 is an apocalyptic number.

20201002104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20201002104 is an abundant number, since it is smaller than the sum of its proper divisors (30414007896).

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

20201002104 is a wasteful number, since it uses less digits than its factorization.

20201002104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875087 (or 1875083 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20201002104 its reverse (40120010202), we get a palindrome (60321012306).

The spelling of 20201002104 in words is "twenty billion, two hundred one million, two thousand, one hundred four".