11203107821 has 8 divisors (see below), whose sum is σ = 11362716288. Its totient is φ = 11043550000.

The previous prime is 11203107793. The next prime is 11203107833. The reversal of 11203107821 is 12870130211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11203107821 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 (11203107841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798971 + ... + 812871.

It is an arithmetic number, because the mean of its divisors is an integer number (1420339536).

Almost surely, 2^11203107821 is an apocalyptic number.

It is an amenable number.

11203107821 is a deficient number, since it is larger than the sum of its proper divisors (159608467).

11203107821 is a wasteful number, since it uses less digits than its factorization.

11203107821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25323.

The product of its (nonzero) digits is 672, while the sum is 26.

The spelling of 11203107821 in words is "eleven billion, two hundred three million, one hundred seven thousand, eight hundred twenty-one".