1155313541001 has 8 divisors (see below), whose sum is σ = 1540426021344. Its totient is φ = 770205044000.

The previous prime is 1155313540987. The next prime is 1155313541027. The reversal of 1155313541001 is 1001453135511.

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

It is a cyclic number.

It is not a de Polignac number, because 1155313541001 - 2¹⁰ = 1155313539977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155313541001.

It is not an unprimeable number, because it can be changed into a prime (1155313541801) 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, 236331 + ... + 1538336.

It is an arithmetic number, because the mean of its divisors is an integer number (192553252668).

Almost surely, 2^{1155313541001} is an apocalyptic number.

It is an amenable number.

1155313541001 is a deficient number, since it is larger than the sum of its proper divisors (385112480343).

1155313541001 is a wasteful number, since it uses less digits than its factorization.

1155313541001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991671.

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 1155313541001 its reverse (1001453135511), we get a palindrome (2156766676512).

The spelling of 1155313541001 in words is "one trillion, one hundred fifty-five billion, three hundred thirteen million, five hundred forty-one thousand, one".