20302124100 has 36 divisors (see below), whose sum is σ = 58740813264. Its totient is φ = 5413899680.

The previous prime is 20302124027. The next prime is 20302124113. The reversal of 20302124100 is 142120302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20302124100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33836574 + ... + 33837173.

Almost surely, 2^20302124100 is an apocalyptic number.

20302124100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302124100 is an abundant number, since it is smaller than the sum of its proper divisors (38438689164).

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

20302124100 is a wasteful number, since it uses less digits than its factorization.

20302124100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67673764 (or 67673757 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20302124100 its reverse (142120302), we get a palindrome (20444244402).

The spelling of 20302124100 in words is "twenty billion, three hundred two million, one hundred twenty-four thousand, one hundred".