2321121064 has 8 divisors (see below), whose sum is σ = 4352102010. Its totient is φ = 1160560528.

The previous prime is 2321121059. The next prime is 2321121079. The reversal of 2321121064 is 4601211232.

2321121064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1241998564 + 1079122500 = 35242^2 + 32850^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145070059 + ... + 145070074.

Almost surely, 2^2321121064 is an apocalyptic number.

It is an amenable number.

2321121064 is a deficient number, since it is larger than the sum of its proper divisors (2030980946).

2321121064 is a wasteful number, since it uses less digits than its factorization.

2321121064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290140139 (or 290140135 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2321121064 is about 48178.0143218875. The cubic root of 2321121064 is about 1324.0343863433.

Adding to 2321121064 its reverse (4601211232), we get a palindrome (6922332296).

The spelling of 2321121064 in words is "two billion, three hundred twenty-one million, one hundred twenty-one thousand, sixty-four".