4000120493 has 2 divisors, whose sum is σ = 4000120494. Its totient is φ = 4000120492.

The previous prime is 4000120489. The next prime is 4000120499. The reversal of 4000120493 is 3940210004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2872638409 + 1127482084 = 53597^2 + 33578^2 .

It is a cyclic number.

It is not a de Polignac number, because 4000120493 - 2² = 4000120489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000120499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000060246 + 2000060247.

It is an arithmetic number, because the mean of its divisors is an integer number (2000060247).

Almost surely, 2^4000120493 is an apocalyptic number.

It is an amenable number.

4000120493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000120493 is an equidigital number, since it uses as much as digits as its factorization.

4000120493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4000120493 is about 63246.5057769993. The cubic root of 4000120493 is about 1587.4169910344.

Adding to 4000120493 its reverse (3940210004), we get a palindrome (7940330497).

The spelling of 4000120493 in words is "four billion, one hundred twenty thousand, four hundred ninety-three".