1240211304423 has 96 divisors (see below), whose sum is σ = 2277199177344. Its totient is φ = 633040551936.

The previous prime is 1240211304407. The next prime is 1240211304433. The reversal of 1240211304423 is 3244031120421.

1240211304423 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 211 + 3 + 0 + 442 + 3 = 666.

It is not a de Polignac number, because 1240211304423 - 2⁴ = 1240211304407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240211304433) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2973015 + ... + 3364407.

It is an arithmetic number, because the mean of its divisors is an integer number (23720824764).

Almost surely, 2^{1240211304423} is an apocalyptic number.

1240211304423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1240211304423 is a deficient number, since it is larger than the sum of its proper divisors (1036987872921).

1240211304423 is a wasteful number, since it uses less digits than its factorization.

1240211304423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391545 (or 391542 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1240211304423 its reverse (3244031120421), we get a palindrome (4484242424844).

The spelling of 1240211304423 in words is "one trillion, two hundred forty billion, two hundred eleven million, three hundred four thousand, four hundred twenty-three".