5643123122 has 40 divisors (see below), whose sum is σ = 10634601516. Its totient is φ = 2232419616.

The previous prime is 5643123107. The next prime is 5643123133. The reversal of 5643123122 is 2213213465.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4063935001 + 1579188121 = 63749^2 + 39739^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17228 + ... + 107624.

Almost surely, 2^5643123122 is an apocalyptic number.

5643123122 is a deficient number, since it is larger than the sum of its proper divisors (4991478394).

5643123122 is an equidigital number, since it uses as much as digits as its factorization.

5643123122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90440 (or 90419 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 5643123122 is about 75120.7236519990. The cubic root of 5643123122 is about 1780.3545901754.

Adding to 5643123122 its reverse (2213213465), we get a palindrome (7856336587).

The spelling of 5643123122 in words is "five billion, six hundred forty-three million, one hundred twenty-three thousand, one hundred twenty-two".