2121321032 has 8 divisors (see below), whose sum is σ = 3977476950. Its totient is φ = 1060660512.

The previous prime is 2121321011. The next prime is 2121321053. The reversal of 2121321032 is 2301231212.

It is an interprime number because it is at equal distance from previous prime (2121321011) and next prime (2121321053).

It can be written as a sum of positive squares in only one way, i.e., 1237210276 + 884110756 = 35174^2 + 29734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2121321032.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132582557 + ... + 132582572.

Almost surely, 2^2121321032 is an apocalyptic number.

It is an amenable number.

2121321032 is a deficient number, since it is larger than the sum of its proper divisors (1856155918).

2121321032 is a wasteful number, since it uses less digits than its factorization.

2121321032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265165135 (or 265165131 counting only the distinct ones).

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

The square root of 2121321032 is about 46057.8009896261. The cubic root of 2121321032 is about 1284.8984324230.

Adding to 2121321032 its reverse (2301231212), we get a palindrome (4422552244).

The spelling of 2121321032 in words is "two billion, one hundred twenty-one million, three hundred twenty-one thousand, thirty-two".