2121344132 has 12 divisors (see below), whose sum is σ = 3712677696. Its totient is φ = 1060579080.

The previous prime is 2121344131. The next prime is 2121344149. The reversal of 2121344132 is 2314431212.

It is a junction number, because it is equal to n+sod(n) for n = 2121344098 and 2121344107.

It is not an unprimeable number, because it can be changed into a prime (2121344131) 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, 67073 + ... + 93495.

It is an arithmetic number, because the mean of its divisors is an integer number (309389808).

Almost surely, 2^2121344132 is an apocalyptic number.

It is an amenable number.

2121344132 is a deficient number, since it is larger than the sum of its proper divisors (1591333564).

2121344132 is a wasteful number, since it uses less digits than its factorization.

2121344132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46498 (or 46496 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 2121344132 is about 46058.0517607942. The cubic root of 2121344132 is about 1284.9030963479.

Adding to 2121344132 its reverse (2314431212), we get a palindrome (4435775344).

The spelling of 2121344132 in words is "two billion, one hundred twenty-one million, three hundred forty-four thousand, one hundred thirty-two".