1240444311223 has 12 divisors (see below), whose sum is σ = 1365222744408. Its totient is φ = 1126254598560.

The previous prime is 1240444311193. The next prime is 1240444311233. The reversal of 1240444311223 is 3221134440421.

It is a happy number.

It is not a de Polignac number, because 1240444311223 - 2³³ = 1231854376631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240444311233) 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 in 11 ways as a sum of consecutive naturals, for example, 60152865 + ... + 60173482.

It is an arithmetic number, because the mean of its divisors is an integer number (113768562034).

Almost surely, 2^{1240444311223} is an apocalyptic number.

1240444311223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1240444311223 is a deficient number, since it is larger than the sum of its proper divisors (124778433185).

1240444311223 is a wasteful number, since it uses less digits than its factorization.

1240444311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120326434 (or 120326421 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1240444311223 its reverse (3221134440421), we get a palindrome (4461578751644).

The spelling of 1240444311223 in words is "one trillion, two hundred forty billion, four hundred forty-four million, three hundred eleven thousand, two hundred twenty-three".