1355541313231 has 8 divisors (see below), whose sum is σ = 1549197808640. Its totient is φ = 1161886751928.

The previous prime is 1355541313211. The next prime is 1355541313237. The reversal of 1355541313231 is 1323131455531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1355541313231 - 2⁵ = 1355541313199 is a prime.

It is a super-2 number, since 2×1355541313231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355541313237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640170 + ... + 2324056.

It is an arithmetic number, because the mean of its divisors is an integer number (193649726080).

Almost surely, 2^{1355541313231} is an apocalyptic number.

1355541313231 is a deficient number, since it is larger than the sum of its proper divisors (193656495409).

1355541313231 is an equidigital number, since it uses as much as digits as its factorization.

1355541313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967053.

The product of its digits is 81000, while the sum is 37.

Adding to 1355541313231 its reverse (1323131455531), we get a palindrome (2678672768762).

The spelling of 1355541313231 in words is "one trillion, three hundred fifty-five billion, five hundred forty-one million, three hundred thirteen thousand, two hundred thirty-one".