11011401 has 6 divisors (see below), whose sum is σ = 15905370. Its totient is φ = 7340928.

The previous prime is 11011381. The next prime is 11011409. The reversal of 11011401 is 10411011.

It can be written as a sum of positive squares in only one way, i.e., 7952400 + 3059001 = 2820^2 + 1749^2 .

It is not a de Polignac number, because 11011401 - 2⁵ = 11011369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1223489 = 11011401 / (1 + 1 + 0 + 1 + 1 + 4 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (11011409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611736 + ... + 611753.

It is an arithmetic number, because the mean of its divisors is an integer number (2650895).

Almost surely, 2^11011401 is an apocalyptic number.

It is an amenable number.

11011401 is a deficient number, since it is larger than the sum of its proper divisors (4893969).

11011401 is a wasteful number, since it uses less digits than its factorization.

11011401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223495 (or 1223492 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 11011401 is about 3318.3431106503. The cubic root of 11011401 is about 222.4748176693.

Adding to 11011401 its reverse (10411011), we get a palindrome (21422412).

It can be divided in two parts, 110 and 11401, that added together give a palindrome (11511).

The spelling of 11011401 in words is "eleven million, eleven thousand, four hundred one".