100343321551 has 8 divisors (see below), whose sum is σ = 109855001808. Its totient is φ = 90896568000.

The previous prime is 100343321537. The next prime is 100343321557. The reversal of 100343321551 is 155123343001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100343321551 - 2¹⁹ = 100342797263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100343321557) 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, 16228440 + ... + 16234621.

It is an arithmetic number, because the mean of its divisors is an integer number (13731875226).

Almost surely, 2^100343321551 is an apocalyptic number.

100343321551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100343321551 is a deficient number, since it is larger than the sum of its proper divisors (9511680257).

100343321551 is a wasteful number, since it uses less digits than its factorization.

100343321551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32463353.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 100343321551 its reverse (155123343001), we get a palindrome (255466664552).

The spelling of 100343321551 in words is "one hundred billion, three hundred forty-three million, three hundred twenty-one thousand, five hundred fifty-one".