5451121100 has 36 divisors (see below), whose sum is σ = 12080622624. Its totient is φ = 2134054080.

The previous prime is 5451121021. The next prime is 5451121103. The reversal of 5451121100 is 11211545.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (5451121103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575207 + ... + 584606.

Almost surely, 2^5451121100 is an apocalyptic number.

5451121100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5451121100 is an abundant number, since it is smaller than the sum of its proper divisors (6629501524).

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

5451121100 is a wasteful number, since it uses less digits than its factorization.

5451121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159874 (or 1159867 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 5451121100 is about 73831.7079580311. The cubic root of 5451121100 is about 1759.9295232626.

Adding to 5451121100 its reverse (11211545), we get a palindrome (5462332645).

The spelling of 5451121100 in words is "five billion, four hundred fifty-one million, one hundred twenty-one thousand, one hundred".