1320111404 has 24 divisors (see below), whose sum is σ = 2552443488. Its totient is φ = 594218240.

The previous prime is 1320111383. The next prime is 1320111413. The reversal of 1320111404 is 4041110231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420467 + ... + 423594.

It is an arithmetic number, because the mean of its divisors is an integer number (106351812).

Almost surely, 2^1320111404 is an apocalyptic number.

It is an amenable number.

1320111404 is a deficient number, since it is larger than the sum of its proper divisors (1232332084).

1320111404 is a wasteful number, since it uses less digits than its factorization.

1320111404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844105 (or 844103 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1320111404 is about 36333.3373639141. The cubic root of 1320111404 is about 1096.9921696886.

Adding to 1320111404 its reverse (4041110231), we get a palindrome (5361221635).

The spelling of 1320111404 in words is "one billion, three hundred twenty million, one hundred eleven thousand, four hundred four".