1240320230421 has 16 divisors (see below), whose sum is σ = 1680380460480. Its totient is φ = 813670531200.

The previous prime is 1240320230389. The next prime is 1240320230431.

It is a happy number.

1240320230421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1240320230421 - 2⁵ = 1240320230389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240320230391 and 1240320230400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240320230431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12507256 + ... + 12606033.

It is an arithmetic number, because the mean of its divisors is an integer number (105023778780).

Almost surely, 2^{1240320230421} is an apocalyptic number.

It is an amenable number.

1240320230421 is a deficient number, since it is larger than the sum of its proper divisors (440060230059).

1240320230421 is a wasteful number, since it uses less digits than its factorization.

1240320230421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25113556.

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 1240320 and 230421, that added together give a palindrome (1470741).

The spelling of 1240320230421 in words is "one trillion, two hundred forty billion, three hundred twenty million, two hundred thirty thousand, four hundred twenty-one".