2321281136 has 40 divisors (see below), whose sum is σ = 4630812240. Its totient is φ = 1126393344.

The previous prime is 2321281111. The next prime is 2321281159. The reversal of 2321281136 is 6311821232.

It is a happy number.

It is a super-2 number, since 2×2321281136² = 10776692224698900992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2321281099 and 2321281108.

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, 237335 + ... + 246921.

It is an arithmetic number, because the mean of its divisors is an integer number (115770306).

Almost surely, 2^2321281136 is an apocalyptic number.

It is an amenable number.

2321281136 is a deficient number, since it is larger than the sum of its proper divisors (2309531104).

2321281136 is a wasteful number, since it uses less digits than its factorization.

2321281136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041 (or 10035 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 2321281136 is about 48179.6755489283. The cubic root of 2321281136 is about 1324.0648222052.

The spelling of 2321281136 in words is "two billion, three hundred twenty-one million, two hundred eighty-one thousand, one hundred thirty-six".