100551120000 has 320 divisors, whose sum is σ = 345286972800. Its totient is φ = 25887232000.

The previous prime is 100551119993. The next prime is 100551120017. The reversal of 100551120000 is 21155001.

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×100551120000² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6952777 + ... + 6967223.

It is an arithmetic number, because the mean of its divisors is an integer number (1079021790).

Almost surely, 2^100551120000 is an apocalyptic number.

100551120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100551120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172643486400).

100551120000 is an abundant number, since it is smaller than the sum of its proper divisors (244735852800).

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

100551120000 is an equidigital number, since it uses as much as digits as its factorization.

100551120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14513 (or 14486 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

Adding to 100551120000 its reverse (21155001), we get a palindrome (100572275001).

The spelling of 100551120000 in words is "one hundred billion, five hundred fifty-one million, one hundred twenty thousand".