4000120903 has 2 divisors, whose sum is σ = 4000120904. Its totient is φ = 4000120902.

The previous prime is 4000120879. The next prime is 4000121009. The reversal of 4000120903 is 3090210004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4000120903 - 2⁵ = 4000120871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000120303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000060451 + 2000060452.

It is an arithmetic number, because the mean of its divisors is an integer number (2000060452).

Almost surely, 2^4000120903 is an apocalyptic number.

4000120903 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000120903 is an equidigital number, since it uses as much as digits as its factorization.

4000120903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 4000120903 is about 63246.5090182850. The cubic root of 4000120903 is about 1587.4170452695.

Adding to 4000120903 its reverse (3090210004), we get a palindrome (7090330907).

The spelling of 4000120903 in words is "four billion, one hundred twenty thousand, nine hundred three".