105054240523 has 4 divisors (see below), whose sum is σ = 105060550528. Its totient is φ = 105047930520.

The previous prime is 105054240481. The next prime is 105054240581. The reversal of 105054240523 is 325042450501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105054240523 is a prime.

It is a super-2 number, since 2×105054240523² (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 (105054240323) 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, 3129963 + ... + 3163348.

It is an arithmetic number, because the mean of its divisors is an integer number (26265137632).

Almost surely, 2^105054240523 is an apocalyptic number.

105054240523 is a deficient number, since it is larger than the sum of its proper divisors (6310005).

105054240523 is an equidigital number, since it uses as much as digits as its factorization.

105054240523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310004.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 105054240523 in words is "one hundred five billion, fifty-four million, two hundred forty thousand, five hundred twenty-three".