101636042043 has 4 divisors (see below), whose sum is σ = 135514722728. Its totient is φ = 67757361360.

The previous prime is 101636042023. The next prime is 101636042069. The reversal of 101636042043 is 340240636101.

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

It is not a de Polignac number, because 101636042043 - 2¹⁰ = 101636041019 is a prime.

It is a super-2 number, since 2×101636042043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101636042043.

It is not an unprimeable number, because it can be changed into a prime (101636042023) 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, 16939340338 + ... + 16939340343.

It is an arithmetic number, because the mean of its divisors is an integer number (33878680682).

Almost surely, 2^101636042043 is an apocalyptic number.

101636042043 is a deficient number, since it is larger than the sum of its proper divisors (33878680685).

101636042043 is an equidigital number, since it uses as much as digits as its factorization.

101636042043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33878680684.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 101636042043 its reverse (340240636101), we get a palindrome (441876678144).

The spelling of 101636042043 in words is "one hundred one billion, six hundred thirty-six million, forty-two thousand, forty-three".