1240123044023 has 6 divisors (see below), whose sum is σ = 1284360489984. Its totient is φ = 1197360179624.

The previous prime is 1240123044011. The next prime is 1240123044047. The reversal of 1240123044023 is 3204403210421.

It is not a de Polignac number, because 1240123044023 - 2¹² = 1240123039927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240123043983 and 1240123044001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240123043023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737289911 + ... + 737291592.

It is an arithmetic number, because the mean of its divisors is an integer number (214060081664).

Almost surely, 2^{1240123044023} is an apocalyptic number.

1240123044023 is a deficient number, since it is larger than the sum of its proper divisors (44237445961).

1240123044023 is an equidigital number, since it uses as much as digits as its factorization.

1240123044023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474581561 (or 1474581532 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1240123044023 its reverse (3204403210421), we get a palindrome (4444526254444).

The spelling of 1240123044023 in words is "one trillion, two hundred forty billion, one hundred twenty-three million, forty-four thousand, twenty-three".