100320405111 has 24 divisors (see below), whose sum is σ = 148897731840. Its totient is φ = 65051528976.

The previous prime is 100320405103. The next prime is 100320405167. The reversal of 100320405111 is 111504023001.

It is not a de Polignac number, because 100320405111 - 2³ = 100320405103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100320405611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449821 + ... + 634806.

It is an arithmetic number, because the mean of its divisors is an integer number (6204072160).

Almost surely, 2^100320405111 is an apocalyptic number.

100320405111 is a deficient number, since it is larger than the sum of its proper divisors (48577326729).

100320405111 is a wasteful number, since it uses less digits than its factorization.

100320405111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084915 (or 1084912 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 100320405111 its reverse (111504023001), we get a palindrome (211824428112).

The spelling of 100320405111 in words is "one hundred billion, three hundred twenty million, four hundred five thousand, one hundred eleven".