1155321230001 has 32 divisors (see below), whose sum is σ = 1642942828800. Its totient is φ = 719632189440.

The previous prime is 1155321229991. The next prime is 1155321230047. The reversal of 1155321230001 is 1000321235511.

It is not a de Polignac number, because 1155321230001 - 2²⁶ = 1155254121137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155321232001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5142460 + ... + 5362418.

It is an arithmetic number, because the mean of its divisors is an integer number (51341963400).

Almost surely, 2^{1155321230001} is an apocalyptic number.

It is an amenable number.

1155321230001 is a deficient number, since it is larger than the sum of its proper divisors (487621598799).

1155321230001 is a wasteful number, since it uses less digits than its factorization.

1155321230001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220729.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 1155321230001 its reverse (1000321235511), we get a palindrome (2155642465512).

The spelling of 1155321230001 in words is "one trillion, one hundred fifty-five billion, three hundred twenty-one million, two hundred thirty thousand, one".