4078903121 has 2 divisors, whose sum is σ = 4078903122. Its totient is φ = 4078903120.

The previous prime is 4078903097. The next prime is 4078903139. The reversal of 4078903121 is 1213098704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3756341521 + 322561600 = 61289^2 + 17960^2 .

It is a cyclic number.

It is not a de Polignac number, because 4078903121 - 2⁶ = 4078903057 is a prime.

It is not a weakly prime, because it can be changed into another prime (4078903021) 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, 2039451560 + 2039451561.

It is an arithmetic number, because the mean of its divisors is an integer number (2039451561).

Almost surely, 2^4078903121 is an apocalyptic number.

It is an amenable number.

4078903121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4078903121 is an equidigital number, since it uses as much as digits as its factorization.

4078903121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 4078903121 is about 63866.2909600988. The cubic root of 4078903121 is about 1597.7707393207.

The spelling of 4078903121 in words is "four billion, seventy-eight million, nine hundred three thousand, one hundred twenty-one".