11403011221211 has 4 divisors (see below), whose sum is σ = 11403204738432. Its totient is φ = 11402817703992.

The previous prime is 11403011221207. The next prime is 11403011221219. The reversal of 11403011221211 is 11212211030411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11403011221211 - 2² = 11403011221207 is a prime.

It is a super-2 number, since 2×11403011221211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11403011221219) 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, 96670196 + ... + 96788081.

It is an arithmetic number, because the mean of its divisors is an integer number (2850801184608).

Almost surely, 2^{11403011221211} is an apocalyptic number.

11403011221211 is a deficient number, since it is larger than the sum of its proper divisors (193517221).

11403011221211 is an equidigital number, since it uses as much as digits as its factorization.

11403011221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193517220.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11403011221211 its reverse (11212211030411), we get a palindrome (22615222251622).

The spelling of 11403011221211 in words is "eleven trillion, four hundred three billion, eleven million, two hundred twenty-one thousand, two hundred eleven".