4223293121 has 2 divisors, whose sum is σ = 4223293122. Its totient is φ = 4223293120.

The previous prime is 4223293073. The next prime is 4223293133. The reversal of 4223293121 is 1213923224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2212667521 + 2010625600 = 47039^2 + 44840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4223293121 is a prime.

It is not a weakly prime, because it can be changed into another prime (4223293141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111646560 + 2111646561.

It is an arithmetic number, because the mean of its divisors is an integer number (2111646561).

Almost surely, 2^4223293121 is an apocalyptic number.

It is an amenable number.

4223293121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223293121 is an equidigital number, since it uses as much as digits as its factorization.

4223293121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 4223293121 is about 64986.8688351732. The cubic root of 4223293121 is about 1616.4058306266.

The spelling of 4223293121 in words is "four billion, two hundred twenty-three million, two hundred ninety-three thousand, one hundred twenty-one".