2131606326 has 32 divisors (see below), whose sum is σ = 4349293056. Its totient is φ = 696276000.

The previous prime is 2131606307. The next prime is 2131606327. The reversal of 2131606326 is 6236061312.

It is a junction number, because it is equal to n+sod(n) for n = 2131606293 and 2131606302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131606327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88441 + ... + 109931.

It is an arithmetic number, because the mean of its divisors is an integer number (135915408).

Almost surely, 2^2131606326 is an apocalyptic number.

2131606326 is an abundant number, since it is smaller than the sum of its proper divisors (2217686730).

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

2131606326 is a wasteful number, since it uses less digits than its factorization.

2131606326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21828.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 2131606326 is about 46169.3223472037. The cubic root of 2131606326 is about 1286.9717091843.

Adding to 2131606326 its reverse (6236061312), we get a palindrome (8367667638).

The spelling of 2131606326 in words is "two billion, one hundred thirty-one million, six hundred six thousand, three hundred twenty-six".