1040000123 has 2 divisors, whose sum is σ = 1040000124. Its totient is φ = 1040000122.

The previous prime is 1040000081. The next prime is 1040000141. The reversal of 1040000123 is 3210000401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040000123 - 2¹⁴ = 1039983739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040000173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520000061 + 520000062.

It is an arithmetic number, because the mean of its divisors is an integer number (520000062).

Almost surely, 2^1040000123 is an apocalyptic number.

1040000123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040000123 is an equidigital number, since it uses as much as digits as its factorization.

1040000123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1040000123 is about 32249.0329002282. The cubic root of 1040000123 is about 1013.1594437620.

Adding to 1040000123 its reverse (3210000401), we get a palindrome (4250000524).

The spelling of 1040000123 in words is "one billion, forty million, one hundred twenty-three", and thus it is an aban number.