1355203513423 has 4 divisors (see below), whose sum is σ = 1362298819968. Its totient is φ = 1348108206880.

The previous prime is 1355203513421. The next prime is 1355203513451. The reversal of 1355203513423 is 3243153025531.

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 1355203513423 - 2¹ = 1355203513421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355203513421) 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, 3547652986 + ... + 3547653367.

It is an arithmetic number, because the mean of its divisors is an integer number (340574704992).

Almost surely, 2^{1355203513423} is an apocalyptic number.

1355203513423 is a deficient number, since it is larger than the sum of its proper divisors (7095306545).

1355203513423 is an equidigital number, since it uses as much as digits as its factorization.

1355203513423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7095306544.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 1355203513423 its reverse (3243153025531), we get a palindrome (4598356538954).

The spelling of 1355203513423 in words is "one trillion, three hundred fifty-five billion, two hundred three million, five hundred thirteen thousand, four hundred twenty-three".