105440402203 has 4 divisors (see below), whose sum is σ = 107429843808. Its totient is φ = 103450960600.

The previous prime is 105440402189. The next prime is 105440402257. The reversal of 105440402203 is 302204044501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302204044501 = 809 ⋅373552589.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105440402203 is a prime.

It is a super-2 number, since 2×105440402203² (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 (105440402273) 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, 994720723 + ... + 994720828.

It is an arithmetic number, because the mean of its divisors is an integer number (26857460952).

Almost surely, 2^105440402203 is an apocalyptic number.

105440402203 is a deficient number, since it is larger than the sum of its proper divisors (1989441605).

105440402203 is an equidigital number, since it uses as much as digits as its factorization.

105440402203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989441604.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 105440402203 its reverse (302204044501), we get a palindrome (407644446704).

The spelling of 105440402203 in words is "one hundred five billion, four hundred forty million, four hundred two thousand, two hundred three".