51103100360 has 64 divisors (see below), whose sum is σ = 124122801600. Its totient is φ = 18823723776.

The previous prime is 51103100341. The next prime is 51103100369. The reversal of 51103100360 is 6300130115.

It is a happy number.

It is a super-2 number, since 2×51103100360² (a number of 22 digits) contains 22 as substring.

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 (51103100369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100607 + ... + 335153.

It is an arithmetic number, because the mean of its divisors is an integer number (1939418775).

Almost surely, 2^51103100360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51103100360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62061400800).

51103100360 is an abundant number, since it is smaller than the sum of its proper divisors (73019701240).

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

51103100360 is a wasteful number, since it uses less digits than its factorization.

51103100360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234990 (or 234986 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 51103100360 its reverse (6300130115), we get a palindrome (57403230475).

The spelling of 51103100360 in words is "fifty-one billion, one hundred three million, one hundred thousand, three hundred sixty".