1040339543423 has 2 divisors, whose sum is σ = 1040339543424. Its totient is φ = 1040339543422.

The previous prime is 1040339543381. The next prime is 1040339543543. The reversal of 1040339543423 is 3243459330401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040339543423 is a prime.

It is a super-2 number, since 2×1040339543423² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040339542423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520169771711 + 520169771712.

It is an arithmetic number, because the mean of its divisors is an integer number (520169771712).

Almost surely, 2^{1040339543423} is an apocalyptic number.

1040339543423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040339543423 is an equidigital number, since it uses as much as digits as its factorization.

1040339543423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 1040339543423 in words is "one trillion, forty billion, three hundred thirty-nine million, five hundred forty-three thousand, four hundred twenty-three".