11401123211 has 8 divisors (see below), whose sum is σ = 11498808048. Its totient is φ = 11303820000.

The previous prime is 11401123187. The next prime is 11401123229. The reversal of 11401123211 is 11232110411.

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-11401123211 is a prime.

It is a super-2 number, since 2×11401123211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11401123211.

It is not an unprimeable number, because it can be changed into a prime (11401123231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35240 + ... + 155061.

It is an arithmetic number, because the mean of its divisors is an integer number (1437351006).

Almost surely, 2^11401123211 is an apocalyptic number.

11401123211 is a deficient number, since it is larger than the sum of its proper divisors (97684837).

11401123211 is a wasteful number, since it uses less digits than its factorization.

11401123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190813.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11401123211 its reverse (11232110411), we get a palindrome (22633233622).

The spelling of 11401123211 in words is "eleven billion, four hundred one million, one hundred twenty-three thousand, two hundred eleven".