11211438701 has 4 divisors (see below), whose sum is σ = 11224802400. Its totient is φ = 11198075004.

The previous prime is 11211438691. The next prime is 11211438713. The reversal of 11211438701 is 10783411211.

11211438701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11211438701 - 2²² = 11207244397 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 (11211438731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6680591 + ... + 6682268.

It is an arithmetic number, because the mean of its divisors is an integer number (2806200600).

Almost surely, 2^11211438701 is an apocalyptic number.

It is an amenable number.

11211438701 is a deficient number, since it is larger than the sum of its proper divisors (13363699).

11211438701 is an equidigital number, since it uses as much as digits as its factorization.

11211438701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13363698.

The product of its (nonzero) digits is 1344, while the sum is 29.

Adding to 11211438701 its reverse (10783411211), we get a palindrome (21994849912).

The spelling of 11211438701 in words is "eleven billion, two hundred eleven million, four hundred thirty-eight thousand, seven hundred one".