11212120303 has 8 divisors (see below), whose sum is σ = 11310531120. Its totient is φ = 11114051520.

The previous prime is 11212120291. The next prime is 11212120307. The reversal of 11212120303 is 30302121211.

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

It is a cyclic number.

It is not a de Polignac number, because 11212120303 - 2⁹ = 11212119791 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 (11212120307) 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, 19438 + ... + 151003.

It is an arithmetic number, because the mean of its divisors is an integer number (1413816390).

Almost surely, 2^11212120303 is an apocalyptic number.

11212120303 is a deficient number, since it is larger than the sum of its proper divisors (98410817).

11212120303 is a wasteful number, since it uses less digits than its factorization.

11212120303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171017.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11212120303 its reverse (30302121211), we get a palindrome (41514241514).

The spelling of 11212120303 in words is "eleven billion, two hundred twelve million, one hundred twenty thousand, three hundred three".