100105111051 has 4 divisors (see below), whose sum is σ = 109205575704. Its totient is φ = 91004646400.

The previous prime is 100105111033. The next prime is 100105111063. The reversal of 100105111051 is 150111501001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100105111051 - 2¹³ = 100105102859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100105181051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550232310 + ... + 4550232331.

It is an arithmetic number, because the mean of its divisors is an integer number (27301393926).

Almost surely, 2^100105111051 is an apocalyptic number.

100105111051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100105111051 is a deficient number, since it is larger than the sum of its proper divisors (9100464653).

100105111051 is an equidigital number, since it uses as much as digits as its factorization.

100105111051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100464652.

The product of its (nonzero) digits is 25, while the sum is 16.

Adding to 100105111051 its reverse (150111501001), we get a palindrome (250216612052).

The spelling of 100105111051 in words is "one hundred billion, one hundred five million, one hundred eleven thousand, fifty-one".