1012240123 has 2 divisors, whose sum is σ = 1012240124. Its totient is φ = 1012240122.

The previous prime is 1012240109. The next prime is 1012240169. The reversal of 1012240123 is 3210422101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012240123 - 2⁵ = 1012240091 is a prime.

It is a super-2 number, since 2×1012240123² = 2049260133222110258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012240097 and 1012240106.

It is not a weakly prime, because it can be changed into another prime (1012240183) 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, 506120061 + 506120062.

It is an arithmetic number, because the mean of its divisors is an integer number (506120062).

Almost surely, 2^1012240123 is an apocalyptic number.

1012240123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012240123 is an equidigital number, since it uses as much as digits as its factorization.

1012240123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1012240123 is about 31815.7213182414. The cubic root of 1012240123 is about 1004.0635065489.

Adding to 1012240123 its reverse (3210422101), we get a palindrome (4222662224).

The spelling of 1012240123 in words is "one billion, twelve million, two hundred forty thousand, one hundred twenty-three".