2131273296 has 120 divisors (see below), whose sum is σ = 6205477824. Its totient is φ = 708134400.

The previous prime is 2131273279. The next prime is 2131273303. The reversal of 2131273296 is 6923721312.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2131273296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1558405 + ... + 1559771.

Almost surely, 2^2131273296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131273296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3102738912).

2131273296 is an abundant number, since it is smaller than the sum of its proper divisors (4074204528).

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

2131273296 is a wasteful number, since it uses less digits than its factorization.

2131273296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1773 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 2131273296 is about 46165.7155906848. The cubic root of 2131273296 is about 1286.9046826567.

The spelling of 2131273296 in words is "two billion, one hundred thirty-one million, two hundred seventy-three thousand, two hundred ninety-six".