11211131004 has 24 divisors (see below), whose sum is σ = 26166255360. Its totient is φ = 3736050864.

The previous prime is 11211131003. The next prime is 11211131021. The reversal of 11211131004 is 40013111211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211131003) 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, 76314 + ... + 168065.

It is an arithmetic number, because the mean of its divisors is an integer number (1090260640).

Almost surely, 2^11211131004 is an apocalyptic number.

It is an amenable number.

11211131004 is an abundant number, since it is smaller than the sum of its proper divisors (14955124356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211131004 is a wasteful number, since it uses less digits than its factorization.

11211131004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248209 (or 248207 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11211131004 its reverse (40013111211), we get a palindrome (51224242215).

The spelling of 11211131004 in words is "eleven billion, two hundred eleven million, one hundred thirty-one thousand, four".