105420531433 has 6 divisors (see below), whose sum is σ = 122632046826. Its totient is φ = 90360455472.

The previous prime is 105420531409. The next prime is 105420531449. The reversal of 105420531433 is 334135024501.

It can be written as a sum of positive squares in only one way, i.e., 78443125929 + 26977405504 = 280077^2 + 164248^2 .

It is not a de Polignac number, because 105420531433 - 2⁹ = 105420530921 is a prime.

It is a super-2 number, since 2×105420531433² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105420531395 and 105420531404.

It is not an unprimeable number, because it can be changed into a prime (105420531473) 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 5 ways as a sum of consecutive naturals, for example, 1075719660 + ... + 1075719757.

It is an arithmetic number, because the mean of its divisors is an integer number (20438674471).

Almost surely, 2^105420531433 is an apocalyptic number.

It is an amenable number.

105420531433 is a deficient number, since it is larger than the sum of its proper divisors (17211515393).

105420531433 is an equidigital number, since it uses as much as digits as its factorization.

105420531433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151439431 (or 2151439424 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 105420531433 its reverse (334135024501), we get a palindrome (439555555934).

The spelling of 105420531433 in words is "one hundred five billion, four hundred twenty million, five hundred thirty-one thousand, four hundred thirty-three".