4318992121 has 2 divisors, whose sum is σ = 4318992122. Its totient is φ = 4318992120.

The previous prime is 4318992109. The next prime is 4318992133. The reversal of 4318992121 is 1212998134.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (4318992109) and next prime (4318992133).

It can be written as a sum of positive squares in only one way, i.e., 3851567721 + 467424400 = 62061^2 + 21620^2 .

It is a cyclic number.

It is not a de Polignac number, because 4318992121 - 2¹⁷ = 4318861049 is a prime.

It is not a weakly prime, because it can be changed into another prime (4318992421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159496060 + 2159496061.

It is an arithmetic number, because the mean of its divisors is an integer number (2159496061).

Almost surely, 2^4318992121 is an apocalyptic number.

It is an amenable number.

4318992121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4318992121 is an equidigital number, since it uses as much as digits as its factorization.

4318992121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 4318992121 is about 65719.0392580415. The cubic root of 4318992121 is about 1628.5239024894.

It can be divided in two parts, 43 and 18992121, that added together give a square (18992164 = 4358²).

The spelling of 4318992121 in words is "four billion, three hundred eighteen million, nine hundred ninety-two thousand, one hundred twenty-one".