20304054100 has 54 divisors (see below), whose sum is σ = 48429392942. Its totient is φ = 7383288000.

The previous prime is 20304054083. The next prime is 20304054101. The reversal of 20304054100 is 145040302.

It can be written as a sum of positive squares in 3 ways, for example, as 243297604 + 20060756496 = 15598^2 + 141636^2 .

It is a super-2 number, since 2×20304054100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304054101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 826911 + ... + 851110.

Almost surely, 2^20304054100 is an apocalyptic number.

20304054100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20304054100 is an abundant number, since it is smaller than the sum of its proper divisors (28125338842).

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

20304054100 is a wasteful number, since it uses less digits than its factorization.

20304054100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678057 (or 1678039 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20304054100 its reverse (145040302), we get a palindrome (20449094402).

The spelling of 20304054100 in words is "twenty billion, three hundred four million, fifty-four thousand, one hundred".