101232111005 has 4 divisors (see below), whose sum is σ = 121478533212. Its totient is φ = 80985688800.

The previous prime is 101232110953. The next prime is 101232111023. The reversal of 101232111005 is 500111232101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500111232101 = 13 ⋅38470094777.

It can be written as a sum of positive squares in 2 ways, for example, as 65828678041 + 35403432964 = 256571^2 + 188158^2 .

It is not a de Polignac number, because 101232111005 - 2³⁴ = 84052241821 is a prime.

It is a super-2 number, since 2×101232111005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10123211096 + ... + 10123211105.

It is an arithmetic number, because the mean of its divisors is an integer number (30369633303).

Almost surely, 2^101232111005 is an apocalyptic number.

It is an amenable number.

101232111005 is a deficient number, since it is larger than the sum of its proper divisors (20246422207).

101232111005 is an equidigital number, since it uses as much as digits as its factorization.

101232111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20246422206.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 101232111005 its reverse (500111232101), we get a palindrome (601343343106).

The spelling of 101232111005 in words is "one hundred one billion, two hundred thirty-two million, one hundred eleven thousand, five".