2012402023493 has 2 divisors, whose sum is σ = 2012402023494. Its totient is φ = 2012402023492.

The previous prime is 2012402023483. The next prime is 2012402023531. The reversal of 2012402023493 is 3943202042102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2012264242849 + 137780644 = 1418543^2 + 11738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012402023493 - 2²⁸ = 2012133588037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012402023483) 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 as a sum of consecutive naturals, namely, 1006201011746 + 1006201011747.

It is an arithmetic number, because the mean of its divisors is an integer number (1006201011747).

Almost surely, 2^{2012402023493} is an apocalyptic number.

It is an amenable number.

2012402023493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012402023493 is an equidigital number, since it uses as much as digits as its factorization.

2012402023493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 2012402023493 its reverse (3943202042102), we get a palindrome (5955604065595).

The spelling of 2012402023493 in words is "two trillion, twelve billion, four hundred two million, twenty-three thousand, four hundred ninety-three".