11401051005 has 24 divisors (see below), whose sum is σ = 19764590040. Its totient is φ = 6079708800.

The previous prime is 11401050977. The next prime is 11401051007. The reversal of 11401051005 is 50015010411.

It is a happy number.

11401051005 is a `hidden beast` number, since 1 + 140 + 10 + 510 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6429954969 + 4971096036 = 80187^2 + 70506^2 .

It is not a de Polignac number, because 11401051005 - 2¹⁰ = 11401049981 is a prime.

It is a super-2 number, since 2×11401051005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401051007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432751 + ... + 458339.

It is an arithmetic number, because the mean of its divisors is an integer number (823524585).

Almost surely, 2^11401051005 is an apocalyptic number.

11401051005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11401051005 is a deficient number, since it is larger than the sum of its proper divisors (8363539035).

11401051005 is a wasteful number, since it uses less digits than its factorization.

11401051005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35501 (or 35498 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 11401051005 its reverse (50015010411), we get a palindrome (61416061416).

The spelling of 11401051005 in words is "eleven billion, four hundred one million, fifty-one thousand, five".