1171111404 has 12 divisors (see below), whose sum is σ = 2732593304. Its totient is φ = 390370464.

The previous prime is 1171111393. The next prime is 1171111441. The reversal of 1171111404 is 4041111711.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48796297 + ... + 48796320.

Almost surely, 2^1171111404 is an apocalyptic number.

It is an amenable number.

1171111404 is an abundant number, since it is smaller than the sum of its proper divisors (1561481900).

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

1171111404 is a wasteful number, since it uses less digits than its factorization.

1171111404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97592624 (or 97592622 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 1171111404 is about 34221.5049932057. The cubic root of 1171111404 is about 1054.0617892284.

It can be divided in two parts, 1171 and 111404, that added together give a triangular number (112575 = T₄₇₄).

The spelling of 1171111404 in words is "one billion, one hundred seventy-one million, one hundred eleven thousand, four hundred four".