1320434100 has 54 divisors (see below), whose sum is σ = 4138830150. Its totient is φ = 352115520.

The previous prime is 1320434099. The next prime is 1320434111. The reversal of 1320434100 is 14340231.

1320434100 is a `hidden beast` number, since 1 + 320 + 4 + 341 + 0 + 0 = 666.

1320434100 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4485924 + 1315948176 = 2118^2 + 36276^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 732675 + ... + 734474.

Almost surely, 2^1320434100 is an apocalyptic number.

1320434100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320434100 is an abundant number, since it is smaller than the sum of its proper divisors (2818396050).

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

1320434100 is a wasteful number, since it uses less digits than its factorization.

1320434100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467169 (or 1467159 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1320434100 is about 36337.7778627147. Note that the first 3 decimals coincide. The cubic root of 1320434100 is about 1097.0815475355.

Adding to 1320434100 its reverse (14340231), we get a palindrome (1334774331).

The spelling of 1320434100 in words is "one billion, three hundred twenty million, four hundred thirty-four thousand, one hundred".