105420743425 has 6 divisors (see below), whose sum is σ = 130721721878. Its totient is φ = 84336594720.

The previous prime is 105420743423. The next prime is 105420743453. The reversal of 105420743425 is 524347024501.

It can be written as a sum of positive squares in 3 ways, for example, as 29540328129 + 75880415296 = 171873^2 + 275464^2 .

It is not a de Polignac number, because 105420743425 - 2¹ = 105420743423 is a prime.

It is a super-2 number, since 2×105420743425² (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 (105420743423) 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, 2108414844 + ... + 2108414893.

Almost surely, 2^105420743425 is an apocalyptic number.

It is an amenable number.

105420743425 is a deficient number, since it is larger than the sum of its proper divisors (25300978453).

105420743425 is an equidigital number, since it uses as much as digits as its factorization.

105420743425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216829747 (or 4216829742 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

Adding to 105420743425 its reverse (524347024501), we get a palindrome (629767767926).

The spelling of 105420743425 in words is "one hundred five billion, four hundred twenty million, seven hundred forty-three thousand, four hundred twenty-five".