105430244251 has 6 divisors (see below), whose sum is σ = 108940929756. Its totient is φ = 102029267700.

The previous prime is 105430244209. The next prime is 105430244263. The reversal of 105430244251 is 152442034501.

It is not a de Polignac number, because 105430244251 - 2²⁷ = 105296026523 is a prime.

It is a super-2 number, since 2×105430244251² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105430244551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54853485 + ... + 54855406.

It is an arithmetic number, because the mean of its divisors is an integer number (18156821626).

Almost surely, 2^105430244251 is an apocalyptic number.

105430244251 is a deficient number, since it is larger than the sum of its proper divisors (3510685505).

105430244251 is an equidigital number, since it uses as much as digits as its factorization.

105430244251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109708953 (or 109708922 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 105430244251 its reverse (152442034501), we get a palindrome (257872278752).

The spelling of 105430244251 in words is "one hundred five billion, four hundred thirty million, two hundred forty-four thousand, two hundred fifty-one".