100203324551 has 8 divisors (see below), whose sum is σ = 109330043664. Its totient is φ = 91079493120.

The previous prime is 100203324523. The next prime is 100203324569. The reversal of 100203324551 is 155423302001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-100203324551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100203324551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203324581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649040 + ... + 788453.

It is an arithmetic number, because the mean of its divisors is an integer number (13666255458).

Almost surely, 2^100203324551 is an apocalyptic number.

100203324551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100203324551 is a deficient number, since it is larger than the sum of its proper divisors (9126719113).

100203324551 is a wasteful number, since it uses less digits than its factorization.

100203324551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443841.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 100203324551 its reverse (155423302001), we get a palindrome (255626626552).

The spelling of 100203324551 in words is "one hundred billion, two hundred three million, three hundred twenty-four thousand, five hundred fifty-one".