2121339316 has 12 divisors (see below), whose sum is σ = 3714908932. Its totient is φ = 1059936768.

The previous prime is 2121339263. The next prime is 2121339317. The reversal of 2121339316 is 6139331212.

It can be written as a sum of positive squares in 2 ways, for example, as 1342929316 + 778410000 = 36646^2 + 27900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121339317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176685 + ... + 188308.

Almost surely, 2^2121339316 is an apocalyptic number.

It is an amenable number.

2121339316 is a deficient number, since it is larger than the sum of its proper divisors (1593569616).

2121339316 is a wasteful number, since it uses less digits than its factorization.

2121339316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366450 (or 366448 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 2121339316 is about 46057.9994789179. Note that the first 3 decimals coincide. The cubic root of 2121339316 is about 1284.9021239930.

The spelling of 2121339316 in words is "two billion, one hundred twenty-one million, three hundred thirty-nine thousand, three hundred sixteen".