1311111004 has 12 divisors (see below), whose sum is σ = 2622222064. Its totient is φ = 561904704.

The previous prime is 1311110987. The next prime is 1311111029. The reversal of 1311111004 is 4001111131.

It is a happy number.

1311111004 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23412669 + ... + 23412724.

Almost surely, 2^1311111004 is an apocalyptic number.

1311111004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1311111004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1311111004 is a wasteful number, since it uses less digits than its factorization.

1311111004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46825404 (or 46825402 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1311111004 is about 36209.2668249441. The cubic root of 1311111004 is about 1094.4934178785.

Adding to 1311111004 its reverse (4001111131), we get a palindrome (5312222135).

The spelling of 1311111004 in words is "one billion, three hundred eleven million, one hundred eleven thousand, four".