1155102031155 has 64 divisors (see below), whose sum is σ = 2001049113600. Its totient is φ = 566994193920.

The previous prime is 1155102031147. The next prime is 1155102031199. The reversal of 1155102031155 is 5511302015511.

It is not a de Polignac number, because 1155102031155 - 2³ = 1155102031147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6887386 + ... + 7053104.

It is an arithmetic number, because the mean of its divisors is an integer number (31266392400).

Almost surely, 2^{1155102031155} is an apocalyptic number.

1155102031155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155102031155 is a deficient number, since it is larger than the sum of its proper divisors (845947082445).

1155102031155 is a wasteful number, since it uses less digits than its factorization.

1155102031155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166444.

The product of its (nonzero) digits is 3750, while the sum is 30.

Adding to 1155102031155 its reverse (5511302015511), we get a palindrome (6666404046666).

The spelling of 1155102031155 in words is "one trillion, one hundred fifty-five billion, one hundred two million, thirty-one thousand, one hundred fifty-five".