21403103354 has 8 divisors (see below), whose sum is σ = 32106738528. Its totient is φ = 10700857180.

The previous prime is 21403103347. The next prime is 21403103369. The reversal of 21403103354 is 45330130412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307832 + ... + 370899.

It is an arithmetic number, because the mean of its divisors is an integer number (4013342316).

Almost surely, 2^21403103354 is an apocalyptic number.

21403103354 is a deficient number, since it is larger than the sum of its proper divisors (10703635174).

21403103354 is a wasteful number, since it uses less digits than its factorization.

21403103354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694500.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 21403103354 its reverse (45330130412), we get a palindrome (66733233766).

The spelling of 21403103354 in words is "twenty-one billion, four hundred three million, one hundred three thousand, three hundred fifty-four".