105536144021 has 32 divisors (see below), whose sum is σ = 132944716800. Its totient is φ = 81383068800.

The previous prime is 105536144009. The next prime is 105536144059. The reversal of 105536144021 is 120441635501.

It is not a de Polignac number, because 105536144021 - 2¹⁸ = 105535881877 is a prime.

It is a super-2 number, since 2×105536144021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105536044021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8636606 + ... + 8648816.

It is an arithmetic number, because the mean of its divisors is an integer number (4154522400).

Almost surely, 2^105536144021 is an apocalyptic number.

105536144021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105536144021 is a deficient number, since it is larger than the sum of its proper divisors (27408572779).

105536144021 is a wasteful number, since it uses less digits than its factorization.

105536144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13385.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 105536144021 its reverse (120441635501), we get a palindrome (225977779522).

The spelling of 105536144021 in words is "one hundred five billion, five hundred thirty-six million, one hundred forty-four thousand, twenty-one".