100215311600 has 60 divisors (see below), whose sum is σ = 249069635160. Its totient is φ = 38703840000.

The previous prime is 100215311543. The next prime is 100215311617. The reversal of 100215311600 is 6113512001.

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

It is a congruent number.

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, 4308026 + ... + 4331225.

It is an arithmetic number, because the mean of its divisors is an integer number (4151160586).

Almost surely, 2^100215311600 is an apocalyptic number.

100215311600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100215311600 is an abundant number, since it is smaller than the sum of its proper divisors (148854323560).

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

100215311600 is a wasteful number, since it uses less digits than its factorization.

100215311600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639298 (or 8639287 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 100215311600 its reverse (6113512001), we get a palindrome (106328823601).

The spelling of 100215311600 in words is "one hundred billion, two hundred fifteen million, three hundred eleven thousand, six hundred".