105603131631001 has 4 divisors (see below), whose sum is σ = 105603319458100. Its totient is φ = 105602943803904.

The previous prime is 105603131630999. The next prime is 105603131631083. The reversal of 105603131631001 is 100136131306501.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38803568021001 + 66799563610000 = 6229251^2 + 8173100^2 .

It is a cyclic number.

It is not a de Polignac number, because 105603131631001 - 2¹ = 105603131630999 is a prime.

It is a super-2 number, since 2×105603131631001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105603131631301) 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, 93067656 + ... + 94195513.

It is an arithmetic number, because the mean of its divisors is an integer number (26400829864525).

Almost surely, 2^{105603131631001} is an apocalyptic number.

It is an amenable number.

105603131631001 is a deficient number, since it is larger than the sum of its proper divisors (187827099).

105603131631001 is an equidigital number, since it uses as much as digits as its factorization.

105603131631001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187827098.

The product of its (nonzero) digits is 4860, while the sum is 31.

Adding to 105603131631001 its reverse (100136131306501), we get a palindrome (205739262937502).

The spelling of 105603131631001 in words is "one hundred five trillion, six hundred three billion, one hundred thirty-one million, six hundred thirty-one thousand, one".