1355421054143 has 4 divisors (see below), whose sum is σ = 1459684212168. Its totient is φ = 1251157896120.

The previous prime is 1355421054139. The next prime is 1355421054179. The reversal of 1355421054143 is 3414501245531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1355421054143 - 2² = 1355421054139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1355421054097 and 1355421054106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355421054103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52131578993 + ... + 52131579018.

It is an arithmetic number, because the mean of its divisors is an integer number (364921053042).

Almost surely, 2^{1355421054143} is an apocalyptic number.

1355421054143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1355421054143 is a deficient number, since it is larger than the sum of its proper divisors (104263158025).

1355421054143 is a wasteful number, since it uses less digits than its factorization.

1355421054143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104263158024.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 1355421054143 its reverse (3414501245531), we get a palindrome (4769922299674).

The spelling of 1355421054143 in words is "one trillion, three hundred fifty-five billion, four hundred twenty-one million, fifty-four thousand, one hundred forty-three".