11211401044 has 24 divisors (see below), whose sum is σ = 20369832840. Its totient is φ = 5392845696.

The previous prime is 11211401023. The next prime is 11211401093. The reversal of 11211401044 is 44010411211.

It can be written as a sum of positive squares in 4 ways, for example, as 1168956100 + 10042444944 = 34190^2 + 100212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142327 + ... + 206590.

It is an arithmetic number, because the mean of its divisors is an integer number (848743035).

Almost surely, 2^11211401044 is an apocalyptic number.

It is an amenable number.

11211401044 is a deficient number, since it is larger than the sum of its proper divisors (9158431796).

11211401044 is a wasteful number, since it uses less digits than its factorization.

11211401044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349227 (or 349225 counting only the distinct ones).

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

Adding to 11211401044 its reverse (44010411211), we get a palindrome (55221812255).

The spelling of 11211401044 in words is "eleven billion, two hundred eleven million, four hundred one thousand, forty-four".