2321122013 has 12 divisors (see below), whose sum is σ = 2858910012. Its totient is φ = 1872501120.

The previous prime is 2321122007. The next prime is 2321122043. The reversal of 2321122013 is 3102211232.

It can be written as a sum of positive squares in 2 ways, for example, as 2164296484 + 156825529 = 46522^2 + 12523^2 .

It is not a de Polignac number, because 2321122013 - 2¹⁴ = 2321105629 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 2321121982 and 2321122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321122043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1392398 + ... + 1394063.

It is an arithmetic number, because the mean of its divisors is an integer number (238242501).

Almost surely, 2^2321122013 is an apocalyptic number.

It is an amenable number.

2321122013 is a deficient number, since it is larger than the sum of its proper divisors (537787999).

2321122013 is a wasteful number, since it uses less digits than its factorization.

2321122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786492 (or 2786485 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2321122013 is about 48178.0241707773. The cubic root of 2321122013 is about 1324.0345667889.

Adding to 2321122013 its reverse (3102211232), we get a palindrome (5423333245).

The spelling of 2321122013 in words is "two billion, three hundred twenty-one million, one hundred twenty-two thousand, thirteen".