2403342353021 has 2 divisors, whose sum is σ = 2403342353022. Its totient is φ = 2403342353020.

The previous prime is 2403342353003. The next prime is 2403342353099. The reversal of 2403342353021 is 1203532433042.

2403342353021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1946264947396 + 457077405625 = 1395086^2 + 676075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2403342353021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2403342353521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201671176510 + 1201671176511.

It is an arithmetic number, because the mean of its divisors is an integer number (1201671176511).

Almost surely, 2^{2403342353021} is an apocalyptic number.

It is an amenable number.

2403342353021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2403342353021 is an equidigital number, since it uses as much as digits as its factorization.

2403342353021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 2403342353021 its reverse (1203532433042), we get a palindrome (3606874786063).

The spelling of 2403342353021 in words is "two trillion, four hundred three billion, three hundred forty-two million, three hundred fifty-three thousand, twenty-one".