100440034123243 has 4 divisors (see below), whose sum is σ = 101854682491248. Its totient is φ = 99025385755240.

The previous prime is 100440034123241. The next prime is 100440034123277. The reversal of 100440034123243 is 342321430044001.

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 100440034123243 - 2¹ = 100440034123241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100440034123241) 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, 707324183896 + ... + 707324184037.

It is an arithmetic number, because the mean of its divisors is an integer number (25463670622812).

Almost surely, 2^{100440034123243} is an apocalyptic number.

100440034123243 is a deficient number, since it is larger than the sum of its proper divisors (1414648368005).

100440034123243 is an equidigital number, since it uses as much as digits as its factorization.

100440034123243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414648368004.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 100440034123243 its reverse (342321430044001), we get a palindrome (442761464167244).

The spelling of 100440034123243 in words is "one hundred trillion, four hundred forty billion, thirty-four million, one hundred twenty-three thousand, two hundred forty-three".