1355431543043 has 2 divisors, whose sum is σ = 1355431543044. Its totient is φ = 1355431543042.

The previous prime is 1355431543031. The next prime is 1355431543181. The reversal of 1355431543043 is 3403451345531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1355431543043 - 2²⁴ = 1355414765827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1355431546043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677715771521 + 677715771522.

It is an arithmetic number, because the mean of its divisors is an integer number (677715771522).

Almost surely, 2^{1355431543043} is an apocalyptic number.

1355431543043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355431543043 is an equidigital number, since it uses as much as digits as its factorization.

1355431543043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 1355431543043 its reverse (3403451345531), we get a palindrome (4758882888574).

The spelling of 1355431543043 in words is "one trillion, three hundred fifty-five billion, four hundred thirty-one million, five hundred forty-three thousand, forty-three".