1355120024105 has 8 divisors (see below), whose sum is σ = 1665806078664. Its totient is φ = 1057654652800.

The previous prime is 1355120024087. The next prime is 1355120024107. The reversal of 1355120024105 is 5014200215531.

It can be written as a sum of positive squares in 4 ways, for example, as 117009832489 + 1238110191616 = 342067^2 + 1112704^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1355120024105 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355120024107) 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, 3305170586 + ... + 3305170995.

It is an arithmetic number, because the mean of its divisors is an integer number (208225759833).

Almost surely, 2^{1355120024105} is an apocalyptic number.

It is an amenable number.

1355120024105 is a deficient number, since it is larger than the sum of its proper divisors (310686054559).

1355120024105 is an equidigital number, since it uses as much as digits as its factorization.

1355120024105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610341627.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 1355120024105 its reverse (5014200215531), we get a palindrome (6369320239636).

The spelling of 1355120024105 in words is "one trillion, three hundred fifty-five billion, one hundred twenty million, twenty-four thousand, one hundred five".