10203404455 has 4 divisors (see below), whose sum is σ = 12244085352. Its totient is φ = 8162723560.

The previous prime is 10203404401. The next prime is 10203404459. The reversal of 10203404455 is 55440430201.

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

It is not a de Polignac number, because 10203404455 - 2⁷ = 10203404327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203404459) 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, 1020340441 + ... + 1020340450.

It is an arithmetic number, because the mean of its divisors is an integer number (3061021338).

Almost surely, 2^10203404455 is an apocalyptic number.

10203404455 is a deficient number, since it is larger than the sum of its proper divisors (2040680897).

10203404455 is an equidigital number, since it uses as much as digits as its factorization.

10203404455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040680896.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 10203404455 its reverse (55440430201), we get a palindrome (65643834656).

The spelling of 10203404455 in words is "ten billion, two hundred three million, four hundred four thousand, four hundred fifty-five".