105404131123 has 8 divisors (see below), whose sum is σ = 109213110000. Its totient is φ = 101662567968.

The previous prime is 105404131103. The next prime is 105404131171. The reversal of 105404131123 is 321131404501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105404131123 - 2¹³ = 105404122931 is a prime.

It is a super-2 number, since 2×105404131123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105404131103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16850748 + ... + 16857001.

It is an arithmetic number, because the mean of its divisors is an integer number (13651638750).

Almost surely, 2^105404131123 is an apocalyptic number.

105404131123 is a deficient number, since it is larger than the sum of its proper divisors (3808978877).

105404131123 is an equidigital number, since it uses as much as digits as its factorization.

105404131123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33707861.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 105404131123 its reverse (321131404501), we get a palindrome (426535535624).

The spelling of 105404131123 in words is "one hundred five billion, four hundred four million, one hundred thirty-one thousand, one hundred twenty-three".