105123441253 has 4 divisors (see below), whose sum is σ = 105124712608. Its totient is φ = 105122169900.

The previous prime is 105123441239. The next prime is 105123441307. The reversal of 105123441253 is 352144321501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105123441253 is a prime.

It is a super-2 number, since 2×105123441253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105123448253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502323 + ... + 680128.

It is an arithmetic number, because the mean of its divisors is an integer number (26281178152).

Almost surely, 2^105123441253 is an apocalyptic number.

It is an amenable number.

105123441253 is a deficient number, since it is larger than the sum of its proper divisors (1271355).

105123441253 is an equidigital number, since it uses as much as digits as its factorization.

105123441253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271354.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 105123441253 its reverse (352144321501), we get a palindrome (457267762754).

The spelling of 105123441253 in words is "one hundred five billion, one hundred twenty-three million, four hundred forty-one thousand, two hundred fifty-three".