105054021203 has 4 divisors (see below), whose sum is σ = 105064824528. Its totient is φ = 105043217880.

The previous prime is 105054021181. The next prime is 105054021251. The reversal of 105054021203 is 302120450501.

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

It is a cyclic number.

It is not a de Polignac number, because 105054021203 - 2¹⁸ = 105053759059 is a prime.

It is a super-2 number, since 2×105054021203² (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 (105054024203) 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, 5387063 + ... + 5406528.

It is an arithmetic number, because the mean of its divisors is an integer number (26266206132).

Almost surely, 2^105054021203 is an apocalyptic number.

105054021203 is a deficient number, since it is larger than the sum of its proper divisors (10803325).

105054021203 is an equidigital number, since it uses as much as digits as its factorization.

105054021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803324.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 105054021203 its reverse (302120450501), we get a palindrome (407174471704).

The spelling of 105054021203 in words is "one hundred five billion, fifty-four million, twenty-one thousand, two hundred three".