11401442011 has 8 divisors (see below), whose sum is σ = 11480251904. Its totient is φ = 11322740520.

The previous prime is 11401442009. The next prime is 11401442077. The reversal of 11401442011 is 11024410411.

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 11401442011 - 2¹ = 11401442009 is a prime.

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 11401442011.

It is not an unprimeable number, because it can be changed into a prime (11401442111) 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, 189946 + ... + 242656.

It is an arithmetic number, because the mean of its divisors is an integer number (1435031488).

Almost surely, 2^11401442011 is an apocalyptic number.

11401442011 is a deficient number, since it is larger than the sum of its proper divisors (78809893).

11401442011 is a wasteful number, since it uses less digits than its factorization.

11401442011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54201.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11401442011 its reverse (11024410411), we get a palindrome (22425852422).

It can be divided in two parts, 114014 and 42011, that added together give a square (156025 = 395²).

The spelling of 11401442011 in words is "eleven billion, four hundred one million, four hundred forty-two thousand, eleven".