1040120369 has 2 divisors, whose sum is σ = 1040120370. Its totient is φ = 1040120368.

The previous prime is 1040120353. The next prime is 1040120423. The reversal of 1040120369 is 9630210401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 884170225 + 155950144 = 29735^2 + 12488^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040120369 - 2⁴ = 1040120353 is a prime.

It is a super-2 number, since 2×1040120369² = 2163700764017392322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1040120569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520060184 + 520060185.

It is an arithmetic number, because the mean of its divisors is an integer number (520060185).

Almost surely, 2^1040120369 is an apocalyptic number.

It is an amenable number.

1040120369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040120369 is an equidigital number, since it uses as much as digits as its factorization.

1040120369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1040120369 is about 32250.8971813188. The cubic root of 1040120369 is about 1013.1984898072.

The spelling of 1040120369 in words is "one billion, forty million, one hundred twenty thousand, three hundred sixty-nine".