11111311004 has 6 divisors (see below), whose sum is σ = 19444794264. Its totient is φ = 5555655500.

The previous prime is 11111310967. The next prime is 11111311007. The reversal of 11111311004 is 40011311111.

It is a happy number.

It is a super-2 number, since 2×11111311004² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11111311004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111311007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388913872 + ... + 1388913879.

It is an arithmetic number, because the mean of its divisors is an integer number (3240799044).

Almost surely, 2^11111311004 is an apocalyptic number.

It is an amenable number.

11111311004 is a deficient number, since it is larger than the sum of its proper divisors (8333483260).

11111311004 is a wasteful number, since it uses less digits than its factorization.

11111311004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777827755 (or 2777827753 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11111311004 its reverse (40011311111), we get a palindrome (51122622115).

The spelling of 11111311004 in words is "eleven billion, one hundred eleven million, three hundred eleven thousand, four".