2131335320 has 32 divisors (see below), whose sum is σ = 4897540800. Its totient is φ = 834394368.

The previous prime is 2131335301. The next prime is 2131335359. The reversal of 2131335320 is 235331312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564965 + ... + 568724.

It is an arithmetic number, because the mean of its divisors is an integer number (153048150).

Almost surely, 2^2131335320 is an apocalyptic number.

2131335320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131335320 is an abundant number, since it is smaller than the sum of its proper divisors (2766205480).

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

2131335320 is a wasteful number, since it uses less digits than its factorization.

2131335320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133747 (or 1133743 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 2131335320 is about 46166.3873397085. The cubic root of 2131335320 is about 1286.9171663055.

Adding to 2131335320 its reverse (235331312), we get a palindrome (2366666632).

The spelling of 2131335320 in words is "two billion, one hundred thirty-one million, three hundred thirty-five thousand, three hundred twenty".