1240421100223 has 32 divisors (see below), whose sum is σ = 1308751920000. Its totient is φ = 1174107916800.

The previous prime is 1240421100211. The next prime is 1240421100229. The reversal of 1240421100223 is 3220011240421.

It is a cyclic number.

It is not a de Polignac number, because 1240421100223 - 2²¹ = 1240419003071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240421100194 and 1240421100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240421100229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102431893 + ... + 102444001.

It is an arithmetic number, because the mean of its divisors is an integer number (40898497500).

Almost surely, 2^{1240421100223} is an apocalyptic number.

1240421100223 is a deficient number, since it is larger than the sum of its proper divisors (68330819777).

1240421100223 is a wasteful number, since it uses less digits than its factorization.

1240421100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12595.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1240421100223 its reverse (3220011240421), we get a palindrome (4460432340644).

The spelling of 1240421100223 in words is "one trillion, two hundred forty billion, four hundred twenty-one million, one hundred thousand, two hundred twenty-three".