1355143243047 has 32 divisors (see below), whose sum is σ = 1974531188736. Its totient is φ = 819877212000.

The previous prime is 1355143243043. The next prime is 1355143243049. The reversal of 1355143243047 is 7403423415531.

It is not a de Polignac number, because 1355143243047 - 2² = 1355143243043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355143243043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133493422 + ... + 133503572.

It is an arithmetic number, because the mean of its divisors is an integer number (61704099648).

Almost surely, 2^{1355143243047} is an apocalyptic number.

1355143243047 is a deficient number, since it is larger than the sum of its proper divisors (619387945689).

1355143243047 is a wasteful number, since it uses less digits than its factorization.

1355143243047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16771.

The product of its (nonzero) digits is 604800, while the sum is 42.

Adding to 1355143243047 its reverse (7403423415531), we get a palindrome (8758566658578).

The spelling of 1355143243047 in words is "one trillion, three hundred fifty-five billion, one hundred forty-three million, two hundred forty-three thousand, forty-seven".